./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.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 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:41:53,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:41:53,528 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:41:53,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:41:53,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:41:53,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:41:53,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:41:53,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:41:53,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:41:53,570 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:41:53,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:41:53,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:41:53,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:41:53,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:41:53,571 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:41:53,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:41:53,572 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:41:53,573 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:41:53,574 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:41:53,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:41:53,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:41:53,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:41:53,575 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:41:53,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:41:53,575 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:41:53,575 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:41:53,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:41:53,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:41:53,575 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 -> 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af [2025-02-06 12:41:53,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:41:53,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:41:53,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:41:53,962 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:41:53,962 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:41:53,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2025-02-06 12:41:55,427 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f30f80383/2cfaaf1f122646699294b0a858c8a485/FLAGa97e0b910 [2025-02-06 12:41:55,845 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:41:55,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2025-02-06 12:41:55,864 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f30f80383/2cfaaf1f122646699294b0a858c8a485/FLAGa97e0b910 [2025-02-06 12:41:55,884 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f30f80383/2cfaaf1f122646699294b0a858c8a485 [2025-02-06 12:41:55,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:41:55,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:41:55,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:41:55,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:41:55,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:41:55,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:41:55" (1/1) ... [2025-02-06 12:41:55,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ef3eaba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:55, skipping insertion in model container [2025-02-06 12:41:55,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:41:55" (1/1) ... [2025-02-06 12:41:55,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:41:56,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:41:56,305 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:41:56,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:41:56,416 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:41:56,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56 WrapperNode [2025-02-06 12:41:56,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:41:56,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:41:56,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:41:56,418 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:41:56,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,446 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,475 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2025-02-06 12:41:56,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:41:56,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:41:56,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:41:56,478 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:41:56,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,513 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 12:41:56,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,521 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,524 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,525 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:41:56,531 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:41:56,531 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:41:56,531 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:41:56,532 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (1/1) ... [2025-02-06 12:41:56,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:41:56,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:41:56,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:41:56,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:41:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:41:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:41:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:41:56,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:41:56,604 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:41:56,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:41:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:41:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:41:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 12:41:56,605 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 12:41:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:41:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:41:56,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:41:56,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:41:56,607 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:41:56,743 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:41:56,745 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:41:57,121 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:41:57,121 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:41:57,388 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:41:57,388 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:41:57,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:41:57 BoogieIcfgContainer [2025-02-06 12:41:57,388 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:41:57,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:41:57,391 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:41:57,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:41:57,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:41:55" (1/3) ... [2025-02-06 12:41:57,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d780b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:41:57, skipping insertion in model container [2025-02-06 12:41:57,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:56" (2/3) ... [2025-02-06 12:41:57,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63d780b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:41:57, skipping insertion in model container [2025-02-06 12:41:57,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:41:57" (3/3) ... [2025-02-06 12:41:57,400 INFO L128 eAbstractionObserver]: Analyzing ICFG mix029_power.opt_pso.opt_rmo.opt.i [2025-02-06 12:41:57,416 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:41:57,417 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix029_power.opt_pso.opt_rmo.opt.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-06 12:41:57,418 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:41:57,485 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:41:57,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2025-02-06 12:41:57,567 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2025-02-06 12:41:57,572 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:57,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2025-02-06 12:41:57,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2025-02-06 12:41:57,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2025-02-06 12:41:57,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:41:57,611 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;@7543aa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:41:57,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 12:41:57,620 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:41:57,621 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2025-02-06 12:41:57,621 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:57,622 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:57,623 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:57,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:57,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:57,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1708399575, now seen corresponding path program 1 times [2025-02-06 12:41:57,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:57,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662570937] [2025-02-06 12:41:57,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:57,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:41:57,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:41:57,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:57,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:58,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:58,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662570937] [2025-02-06 12:41:58,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662570937] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:58,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:58,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:41:58,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873313393] [2025-02-06 12:41:58,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:58,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:41:58,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:58,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:41:58,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:41:58,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-06 12:41:58,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:58,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:58,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-06 12:41:58,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:42:04,876 INFO L124 PetriNetUnfolderBase]: 50459/66917 cut-off events. [2025-02-06 12:42:04,876 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2025-02-06 12:42:05,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133537 conditions, 66917 events. 50459/66917 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 1943. Compared 403098 event pairs, 6359 based on Foata normal form. 2988/69834 useless extension candidates. Maximal degree in co-relation 133525. Up to 57061 conditions per place. [2025-02-06 12:42:05,509 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 61 selfloop transitions, 2 changer transitions 2/73 dead transitions. [2025-02-06 12:42:05,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 73 transitions, 291 flow [2025-02-06 12:42:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:42:05,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:42:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2025-02-06 12:42:05,527 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2025-02-06 12:42:05,530 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 106 transitions. [2025-02-06 12:42:05,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 73 transitions, 291 flow [2025-02-06 12:42:05,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 73 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:42:05,556 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2025-02-06 12:42:05,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2025-02-06 12:42:05,565 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2025-02-06 12:42:05,566 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2025-02-06 12:42:05,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:05,566 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:42:05,566 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:42:05,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:42:05,567 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:42:05,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:42:05,569 INFO L85 PathProgramCache]: Analyzing trace with hash -88814277, now seen corresponding path program 1 times [2025-02-06 12:42:05,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:42:05,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853261682] [2025-02-06 12:42:05,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:42:05,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:42:05,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:42:05,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:42:05,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:42:05,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:42:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:42:05,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:42:05,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853261682] [2025-02-06 12:42:05,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853261682] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:42:05,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:42:05,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:42:05,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121701438] [2025-02-06 12:42:05,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:42:05,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:42:05,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:42:05,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:42:05,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:42:05,799 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:42:05,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:05,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:42:05,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:42:05,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:42:10,810 INFO L124 PetriNetUnfolderBase]: 45383/63229 cut-off events. [2025-02-06 12:42:10,810 INFO L125 PetriNetUnfolderBase]: For 2340/2340 co-relation queries the response was YES. [2025-02-06 12:42:11,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125599 conditions, 63229 events. 45383/63229 cut-off events. For 2340/2340 co-relation queries the response was YES. Maximal size of possible extension queue 1954. Compared 409485 event pairs, 45383 based on Foata normal form. 1512/64441 useless extension candidates. Maximal degree in co-relation 125589. Up to 59508 conditions per place. [2025-02-06 12:42:11,232 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2025-02-06 12:42:11,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2025-02-06 12:42:11,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:42:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:42:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 12:42:11,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2025-02-06 12:42:11,235 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2025-02-06 12:42:11,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2025-02-06 12:42:11,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:42:11,243 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2025-02-06 12:42:11,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-02-06 12:42:11,244 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2025-02-06 12:42:11,245 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2025-02-06 12:42:11,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:11,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:42:11,245 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:42:11,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:42:11,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:42:11,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:42:11,246 INFO L85 PathProgramCache]: Analyzing trace with hash -88813513, now seen corresponding path program 1 times [2025-02-06 12:42:11,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:42:11,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307358843] [2025-02-06 12:42:11,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:42:11,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:42:11,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:42:11,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:42:11,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:42:11,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:42:12,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:42:12,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:42:12,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307358843] [2025-02-06 12:42:12,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307358843] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:42:12,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:42:12,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:42:12,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800942936] [2025-02-06 12:42:12,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:42:12,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:42:12,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:42:12,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:42:12,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:42:12,667 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:42:12,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:12,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:42:12,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:42:12,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:42:20,008 INFO L124 PetriNetUnfolderBase]: 60611/81913 cut-off events. [2025-02-06 12:42:20,009 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:42:20,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162139 conditions, 81913 events. 60611/81913 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2397. Compared 508188 event pairs, 9851 based on Foata normal form. 0/80569 useless extension candidates. Maximal degree in co-relation 162133. Up to 38389 conditions per place. [2025-02-06 12:42:20,634 INFO L140 encePairwiseOnDemand]: 41/54 looper letters, 67 selfloop transitions, 9 changer transitions 146/228 dead transitions. [2025-02-06 12:42:20,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 228 transitions, 910 flow [2025-02-06 12:42:20,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 12:42:20,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-06 12:42:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 357 transitions. [2025-02-06 12:42:20,637 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5509259259259259 [2025-02-06 12:42:20,637 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 12 states and 357 transitions. [2025-02-06 12:42:20,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 228 transitions, 910 flow [2025-02-06 12:42:20,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 228 transitions, 909 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:42:20,642 INFO L231 Difference]: Finished difference. Result has 75 places, 49 transitions, 209 flow [2025-02-06 12:42:20,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=209, PETRI_PLACES=75, PETRI_TRANSITIONS=49} [2025-02-06 12:42:20,643 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 14 predicate places. [2025-02-06 12:42:20,643 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 49 transitions, 209 flow [2025-02-06 12:42:20,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:20,644 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:42:20,644 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:42:20,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:42:20,644 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:42:20,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:42:20,644 INFO L85 PathProgramCache]: Analyzing trace with hash -501077819, now seen corresponding path program 1 times [2025-02-06 12:42:20,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:42:20,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721376303] [2025-02-06 12:42:20,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:42:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:42:20,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:42:20,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:42:20,686 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:42:20,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:42:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:42:21,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:42:21,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721376303] [2025-02-06 12:42:21,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721376303] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:42:21,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:42:21,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:42:21,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633400103] [2025-02-06 12:42:21,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:42:21,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:42:21,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:42:21,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:42:21,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:42:21,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:42:21,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 49 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:21,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:42:21,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:42:21,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:42:27,932 INFO L124 PetriNetUnfolderBase]: 46883/64387 cut-off events. [2025-02-06 12:42:27,932 INFO L125 PetriNetUnfolderBase]: For 102663/102663 co-relation queries the response was YES. [2025-02-06 12:42:28,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199235 conditions, 64387 events. 46883/64387 cut-off events. For 102663/102663 co-relation queries the response was YES. Maximal size of possible extension queue 1839. Compared 403256 event pairs, 13587 based on Foata normal form. 1254/65626 useless extension candidates. Maximal degree in co-relation 199217. Up to 50935 conditions per place. [2025-02-06 12:42:28,526 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 62 selfloop transitions, 3 changer transitions 75/146 dead transitions. [2025-02-06 12:42:28,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 146 transitions, 909 flow [2025-02-06 12:42:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:42:28,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:42:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2025-02-06 12:42:28,528 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5343915343915344 [2025-02-06 12:42:28,528 INFO L175 Difference]: Start difference. First operand has 75 places, 49 transitions, 209 flow. Second operand 7 states and 202 transitions. [2025-02-06 12:42:28,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 146 transitions, 909 flow [2025-02-06 12:42:30,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 146 transitions, 840 flow, removed 33 selfloop flow, removed 5 redundant places. [2025-02-06 12:42:30,667 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 222 flow [2025-02-06 12:42:30,668 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=222, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2025-02-06 12:42:30,669 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 11 predicate places. [2025-02-06 12:42:30,669 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 222 flow [2025-02-06 12:42:30,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:30,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:42:30,670 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:42:30,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:42:30,673 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:42:30,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:42:30,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1984007195, now seen corresponding path program 1 times [2025-02-06 12:42:30,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:42:30,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724700223] [2025-02-06 12:42:30,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:42:30,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:42:30,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:42:30,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:42:30,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:42:30,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:42:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:42:30,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:42:30,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724700223] [2025-02-06 12:42:30,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724700223] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:42:30,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:42:30,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:42:30,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116182193] [2025-02-06 12:42:30,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:42:30,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:42:30,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:42:30,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:42:30,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:42:30,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-06 12:42:30,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:30,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:42:30,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-06 12:42:30,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:42:36,731 INFO L124 PetriNetUnfolderBase]: 37165/51683 cut-off events. [2025-02-06 12:42:36,731 INFO L125 PetriNetUnfolderBase]: For 71491/71498 co-relation queries the response was YES. [2025-02-06 12:42:37,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157231 conditions, 51683 events. 37165/51683 cut-off events. For 71491/71498 co-relation queries the response was YES. Maximal size of possible extension queue 1486. Compared 325019 event pairs, 4629 based on Foata normal form. 1692/53339 useless extension candidates. Maximal degree in co-relation 157211. Up to 28795 conditions per place. [2025-02-06 12:42:37,466 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 100 selfloop transitions, 6 changer transitions 1/113 dead transitions. [2025-02-06 12:42:37,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 113 transitions, 728 flow [2025-02-06 12:42:37,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:42:37,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:42:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-02-06 12:42:37,468 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2025-02-06 12:42:37,468 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 222 flow. Second operand 4 states and 132 transitions. [2025-02-06 12:42:37,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 113 transitions, 728 flow [2025-02-06 12:42:37,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 113 transitions, 705 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-02-06 12:42:37,795 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 253 flow [2025-02-06 12:42:37,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2025-02-06 12:42:37,797 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2025-02-06 12:42:37,798 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 253 flow [2025-02-06 12:42:37,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:37,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:42:37,801 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:42:37,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:42:37,802 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:42:37,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:42:37,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1510465137, now seen corresponding path program 1 times [2025-02-06 12:42:37,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:42:37,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318872124] [2025-02-06 12:42:37,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:42:37,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:42:37,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 12:42:37,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 12:42:37,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:42:37,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:42:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:42:39,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:42:39,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318872124] [2025-02-06 12:42:39,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318872124] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:42:39,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:42:39,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:42:39,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982575680] [2025-02-06 12:42:39,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:42:39,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:42:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:42:39,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:42:39,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:42:39,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:42:39,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 253 flow. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:39,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:42:39,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:42:39,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:42:44,026 INFO L124 PetriNetUnfolderBase]: 35371/49027 cut-off events. [2025-02-06 12:42:44,027 INFO L125 PetriNetUnfolderBase]: For 66460/66467 co-relation queries the response was YES. [2025-02-06 12:42:44,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159294 conditions, 49027 events. 35371/49027 cut-off events. For 66460/66467 co-relation queries the response was YES. Maximal size of possible extension queue 1307. Compared 299892 event pairs, 6691 based on Foata normal form. 668/49680 useless extension candidates. Maximal degree in co-relation 159275. Up to 38761 conditions per place. [2025-02-06 12:42:44,523 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 90 selfloop transitions, 4 changer transitions 71/171 dead transitions. [2025-02-06 12:42:44,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 171 transitions, 1127 flow [2025-02-06 12:42:44,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:42:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:42:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2025-02-06 12:42:44,525 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5300925925925926 [2025-02-06 12:42:44,525 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 253 flow. Second operand 8 states and 229 transitions. [2025-02-06 12:42:44,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 171 transitions, 1127 flow [2025-02-06 12:42:44,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 171 transitions, 1099 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-06 12:42:44,560 INFO L231 Difference]: Finished difference. Result has 78 places, 55 transitions, 262 flow [2025-02-06 12:42:44,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=262, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2025-02-06 12:42:44,562 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2025-02-06 12:42:44,562 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 262 flow [2025-02-06 12:42:44,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:44,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:42:44,563 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:42:44,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:42:44,563 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:42:44,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:42:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1114861309, now seen corresponding path program 1 times [2025-02-06 12:42:44,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:42:44,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40671582] [2025-02-06 12:42:44,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:42:44,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:42:44,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 12:42:44,625 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 12:42:44,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:42:44,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:42:44,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:42:44,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:42:44,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40671582] [2025-02-06 12:42:44,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40671582] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:42:44,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:42:44,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:42:44,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544765444] [2025-02-06 12:42:44,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:42:44,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:42:44,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:42:44,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:42:44,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:42:44,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:42:44,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:42:44,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:42:44,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:42:44,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand