./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:20:41,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:20:41,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:20:41,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:20:41,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:20:41,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:20:41,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:20:41,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:20:41,932 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:20:41,933 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:20:41,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:20:41,935 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:20:41,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:20:41,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:20:41,938 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:20:41,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:20:41,938 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:20:41,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:20:41,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:20:41,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:20:41,939 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:20:41,940 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:20:41,940 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:20:41,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:20:41,941 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:20:41,941 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:20:41,942 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:20:41,942 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:20:41,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:20:41,943 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:20:41,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:20:41,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:20:41,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:20:41,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:20:41,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:20:41,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:20:41,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:20:41,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:20:41,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:20:41,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:20:41,951 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:20:41,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:20:41,954 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2024-11-17 03:20:42,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:20:42,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:20:42,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:20:42,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:20:42,244 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:20:42,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:20:43,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:20:43,943 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:20:43,944 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:20:43,959 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/637e6e596/eaf1516527414b7f9251f2f874dab68a/FLAG17384c324 [2024-11-17 03:20:43,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/637e6e596/eaf1516527414b7f9251f2f874dab68a [2024-11-17 03:20:43,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:20:43,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:20:43,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:20:43,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:20:43,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:20:43,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:20:43" (1/1) ... [2024-11-17 03:20:43,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797b1ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:43, skipping insertion in model container [2024-11-17 03:20:43,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:20:43" (1/1) ... [2024-11-17 03:20:44,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:20:44,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:20:44,407 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:20:44,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:20:44,514 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:20:44,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44 WrapperNode [2024-11-17 03:20:44,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:20:44,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:20:44,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:20:44,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:20:44,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,564 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-17 03:20:44,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:20:44,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:20:44,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:20:44,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:20:44,578 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,600 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]. [2024-11-17 03:20:44,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,613 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:20:44,623 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:20:44,624 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:20:44,624 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:20:44,625 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (1/1) ... [2024-11-17 03:20:44,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:20:44,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:20:44,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:20:44,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:20:44,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:20:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:20:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:20:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:20:44,715 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:20:44,715 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:20:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:20:44,716 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:20:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:20:44,716 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:20:44,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:20:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:20:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:20:44,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:20:44,720 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:20:44,840 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:20:44,842 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:20:45,002 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:20:45,003 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:20:45,099 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:20:45,099 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:20:45,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:20:45 BoogieIcfgContainer [2024-11-17 03:20:45,100 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:20:45,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:20:45,102 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:20:45,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:20:45,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:20:43" (1/3) ... [2024-11-17 03:20:45,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770d589f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:20:45, skipping insertion in model container [2024-11-17 03:20:45,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:20:44" (2/3) ... [2024-11-17 03:20:45,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770d589f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:20:45, skipping insertion in model container [2024-11-17 03:20:45,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:20:45" (3/3) ... [2024-11-17 03:20:45,112 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-17 03:20:45,125 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:20:45,126 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:20:45,126 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:20:45,172 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:20:45,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2024-11-17 03:20:45,247 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-11-17 03:20:45,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:20:45,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-17 03:20:45,251 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2024-11-17 03:20:45,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2024-11-17 03:20:45,266 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:20:45,273 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;@549e5a2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:20:45,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-17 03:20:45,288 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:20:45,288 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-11-17 03:20:45,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:20:45,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:20:45,290 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:20:45,290 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:20:45,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:20:45,296 INFO L85 PathProgramCache]: Analyzing trace with hash 991504212, now seen corresponding path program 1 times [2024-11-17 03:20:45,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:20:45,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356709480] [2024-11-17 03:20:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:20:45,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:20:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:20:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:20:45,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:20:45,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356709480] [2024-11-17 03:20:45,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356709480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:20:45,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:20:45,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:20:45,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712484050] [2024-11-17 03:20:45,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:20:45,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:20:45,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:20:45,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:20:45,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:20:45,710 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:20:45,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:20:45,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:20:45,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:20:45,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:20:48,893 INFO L124 PetriNetUnfolderBase]: 26557/37849 cut-off events. [2024-11-17 03:20:48,894 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-11-17 03:20:49,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73379 conditions, 37849 events. 26557/37849 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 1279. Compared 243208 event pairs, 26557 based on Foata normal form. 2700/40474 useless extension candidates. Maximal degree in co-relation 73367. Up to 35090 conditions per place. [2024-11-17 03:20:49,193 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 32 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-11-17 03:20:49,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 162 flow [2024-11-17 03:20:49,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:20:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:20:49,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-17 03:20:49,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-17 03:20:49,207 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 70 transitions. [2024-11-17 03:20:49,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 162 flow [2024-11-17 03:20:49,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 158 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:20:49,220 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2024-11-17 03:20:49,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-11-17 03:20:49,227 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2024-11-17 03:20:49,228 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2024-11-17 03:20:49,228 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) [2024-11-17 03:20:49,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:20:49,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:20:49,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:20:49,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:20:49,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:20:49,231 INFO L85 PathProgramCache]: Analyzing trace with hash 991504939, now seen corresponding path program 1 times [2024-11-17 03:20:49,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:20:49,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740650092] [2024-11-17 03:20:49,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:20:49,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:20:49,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:20:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:20:49,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:20:49,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740650092] [2024-11-17 03:20:49,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740650092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:20:49,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:20:49,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:20:49,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931524553] [2024-11-17 03:20:49,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:20:49,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:20:49,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:20:49,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:20:49,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:20:49,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:20:49,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:20:49,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:20:49,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:20:49,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:20:55,150 INFO L124 PetriNetUnfolderBase]: 63538/86218 cut-off events. [2024-11-17 03:20:55,151 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:20:55,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171343 conditions, 86218 events. 63538/86218 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2555. Compared 545248 event pairs, 16430 based on Foata normal form. 0/84456 useless extension candidates. Maximal degree in co-relation 171337. Up to 31940 conditions per place. [2024-11-17 03:20:55,504 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 56 selfloop transitions, 7 changer transitions 115/184 dead transitions. [2024-11-17 03:20:55,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 184 transitions, 740 flow [2024-11-17 03:20:55,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 03:20:55,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 03:20:55,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 279 transitions. [2024-11-17 03:20:55,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.62 [2024-11-17 03:20:55,512 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 9 states and 279 transitions. [2024-11-17 03:20:55,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 184 transitions, 740 flow [2024-11-17 03:20:55,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 184 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:20:55,519 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 185 flow [2024-11-17 03:20:55,520 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=185, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2024-11-17 03:20:55,521 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2024-11-17 03:20:55,521 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 185 flow [2024-11-17 03:20:55,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:20:55,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:20:55,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:20:55,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:20:55,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:20:55,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:20:55,524 INFO L85 PathProgramCache]: Analyzing trace with hash -16168886, now seen corresponding path program 1 times [2024-11-17 03:20:55,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:20:55,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076873570] [2024-11-17 03:20:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:20:55,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:20:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:20:55,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:20:55,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:20:55,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076873570] [2024-11-17 03:20:55,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076873570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:20:55,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:20:55,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:20:55,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288586595] [2024-11-17 03:20:55,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:20:55,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:20:55,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:20:55,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:20:55,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:20:55,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:20:55,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:20:55,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:20:55,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:20:55,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:20:59,894 INFO L124 PetriNetUnfolderBase]: 49367/67551 cut-off events. [2024-11-17 03:20:59,895 INFO L125 PetriNetUnfolderBase]: For 90457/90459 co-relation queries the response was YES. [2024-11-17 03:21:00,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189801 conditions, 67551 events. 49367/67551 cut-off events. For 90457/90459 co-relation queries the response was YES. Maximal size of possible extension queue 1980. Compared 424335 event pairs, 4786 based on Foata normal form. 1634/69120 useless extension candidates. Maximal degree in co-relation 189786. Up to 26979 conditions per place. [2024-11-17 03:21:00,350 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 73 selfloop transitions, 8 changer transitions 106/193 dead transitions. [2024-11-17 03:21:00,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 193 transitions, 1137 flow [2024-11-17 03:21:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:21:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 03:21:00,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 290 transitions. [2024-11-17 03:21:00,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58 [2024-11-17 03:21:00,356 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 185 flow. Second operand 10 states and 290 transitions. [2024-11-17 03:21:00,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 193 transitions, 1137 flow [2024-11-17 03:21:01,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 193 transitions, 1025 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-11-17 03:21:01,357 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 245 flow [2024-11-17 03:21:01,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=245, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2024-11-17 03:21:01,358 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-11-17 03:21:01,358 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 245 flow [2024-11-17 03:21:01,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:01,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:01,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:01,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:21:01,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:01,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1471357674, now seen corresponding path program 1 times [2024-11-17 03:21:01,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:01,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223150571] [2024-11-17 03:21:01,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:01,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:01,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:01,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223150571] [2024-11-17 03:21:01,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223150571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:01,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:01,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:01,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780882302] [2024-11-17 03:21:01,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:01,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:01,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:01,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:01,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:01,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:21:01,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 245 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:01,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:01,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:21:01,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:05,888 INFO L124 PetriNetUnfolderBase]: 47002/64320 cut-off events. [2024-11-17 03:21:05,889 INFO L125 PetriNetUnfolderBase]: For 150286/150300 co-relation queries the response was YES. [2024-11-17 03:21:06,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193981 conditions, 64320 events. 47002/64320 cut-off events. For 150286/150300 co-relation queries the response was YES. Maximal size of possible extension queue 1821. Compared 399906 event pairs, 9107 based on Foata normal form. 1432/65746 useless extension candidates. Maximal degree in co-relation 193959. Up to 27929 conditions per place. [2024-11-17 03:21:06,361 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 79 selfloop transitions, 16 changer transitions 102/203 dead transitions. [2024-11-17 03:21:06,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 203 transitions, 1333 flow [2024-11-17 03:21:06,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:21:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 03:21:06,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 290 transitions. [2024-11-17 03:21:06,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58 [2024-11-17 03:21:06,364 INFO L175 Difference]: Start difference. First operand has 73 places, 49 transitions, 245 flow. Second operand 10 states and 290 transitions. [2024-11-17 03:21:06,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 203 transitions, 1333 flow [2024-11-17 03:21:07,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 203 transitions, 1286 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-17 03:21:07,410 INFO L231 Difference]: Finished difference. Result has 82 places, 60 transitions, 435 flow [2024-11-17 03:21:07,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=435, PETRI_PLACES=82, PETRI_TRANSITIONS=60} [2024-11-17 03:21:07,411 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2024-11-17 03:21:07,412 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 60 transitions, 435 flow [2024-11-17 03:21:07,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:21:07,412 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:07,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:21:07,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:21:07,413 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:07,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:07,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1129973235, now seen corresponding path program 1 times [2024-11-17 03:21:07,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:07,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315471678] [2024-11-17 03:21:07,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:07,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:07,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:07,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315471678] [2024-11-17 03:21:07,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315471678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:07,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:07,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:07,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439307094] [2024-11-17 03:21:07,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:07,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:07,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:07,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:07,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:07,566 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:21:07,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 60 transitions, 435 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) [2024-11-17 03:21:07,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:07,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:21:07,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:12,294 INFO L124 PetriNetUnfolderBase]: 45353/62139 cut-off events. [2024-11-17 03:21:12,294 INFO L125 PetriNetUnfolderBase]: For 209769/209795 co-relation queries the response was YES. [2024-11-17 03:21:12,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204815 conditions, 62139 events. 45353/62139 cut-off events. For 209769/209795 co-relation queries the response was YES. Maximal size of possible extension queue 1753. Compared 381198 event pairs, 2936 based on Foata normal form. 1313/63399 useless extension candidates. Maximal degree in co-relation 204785. Up to 26878 conditions per place. [2024-11-17 03:21:12,811 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 80 selfloop transitions, 22 changer transitions 98/206 dead transitions. [2024-11-17 03:21:12,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 206 transitions, 1647 flow [2024-11-17 03:21:12,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:21:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 03:21:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 284 transitions. [2024-11-17 03:21:12,813 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.568 [2024-11-17 03:21:12,813 INFO L175 Difference]: Start difference. First operand has 82 places, 60 transitions, 435 flow. Second operand 10 states and 284 transitions. [2024-11-17 03:21:12,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 206 transitions, 1647 flow [2024-11-17 03:21:14,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 206 transitions, 1575 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-11-17 03:21:14,906 INFO L231 Difference]: Finished difference. Result has 90 places, 72 transitions, 662 flow [2024-11-17 03:21:14,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=662, PETRI_PLACES=90, PETRI_TRANSITIONS=72} [2024-11-17 03:21:14,907 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2024-11-17 03:21:14,908 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 72 transitions, 662 flow [2024-11-17 03:21:14,908 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) [2024-11-17 03:21:14,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:14,908 INFO L204 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] [2024-11-17 03:21:14,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:21:14,909 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:14,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:14,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1231887062, now seen corresponding path program 1 times [2024-11-17 03:21:14,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:14,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474598350] [2024-11-17 03:21:14,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:14,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:15,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:15,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474598350] [2024-11-17 03:21:15,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474598350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:15,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:15,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:15,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091823470] [2024-11-17 03:21:15,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:15,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:15,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:15,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:15,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:15,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:21:15,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 72 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-17 03:21:15,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:15,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:21:15,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:21,992 INFO L124 PetriNetUnfolderBase]: 65897/90551 cut-off events. [2024-11-17 03:21:21,993 INFO L125 PetriNetUnfolderBase]: For 396734/396770 co-relation queries the response was YES. [2024-11-17 03:21:22,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313964 conditions, 90551 events. 65897/90551 cut-off events. For 396734/396770 co-relation queries the response was YES. Maximal size of possible extension queue 2542. Compared 586591 event pairs, 15311 based on Foata normal form. 1246/91791 useless extension candidates. Maximal degree in co-relation 313927. Up to 43512 conditions per place. [2024-11-17 03:21:22,711 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 81 selfloop transitions, 8 changer transitions 76/171 dead transitions. [2024-11-17 03:21:22,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 171 transitions, 1691 flow [2024-11-17 03:21:22,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:21:22,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:21:22,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2024-11-17 03:21:22,713 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6033333333333334 [2024-11-17 03:21:22,713 INFO L175 Difference]: Start difference. First operand has 90 places, 72 transitions, 662 flow. Second operand 6 states and 181 transitions. [2024-11-17 03:21:22,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 171 transitions, 1691 flow [2024-11-17 03:21:26,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 1655 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-17 03:21:26,785 INFO L231 Difference]: Finished difference. Result has 88 places, 62 transitions, 526 flow [2024-11-17 03:21:26,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=88, PETRI_TRANSITIONS=62} [2024-11-17 03:21:26,786 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 32 predicate places. [2024-11-17 03:21:26,786 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 62 transitions, 526 flow [2024-11-17 03:21:26,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-17 03:21:26,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:26,787 INFO L204 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] [2024-11-17 03:21:26,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:21:26,787 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:26,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:26,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1056614290, now seen corresponding path program 1 times [2024-11-17 03:21:26,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:26,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558245860] [2024-11-17 03:21:26,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:26,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:26,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:26,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558245860] [2024-11-17 03:21:26,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558245860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:26,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:26,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:21:26,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496935158] [2024-11-17 03:21:26,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:26,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:26,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:26,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:26,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:21:26,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 62 transitions, 526 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-17 03:21:26,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:26,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:21:26,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:21:30,591 INFO L124 PetriNetUnfolderBase]: 37813/51815 cut-off events. [2024-11-17 03:21:30,591 INFO L125 PetriNetUnfolderBase]: For 222286/222286 co-relation queries the response was YES. [2024-11-17 03:21:30,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181818 conditions, 51815 events. 37813/51815 cut-off events. For 222286/222286 co-relation queries the response was YES. Maximal size of possible extension queue 1364. Compared 309683 event pairs, 8862 based on Foata normal form. 608/52412 useless extension candidates. Maximal degree in co-relation 181790. Up to 23288 conditions per place. [2024-11-17 03:21:31,029 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 85 selfloop transitions, 20 changer transitions 78/189 dead transitions. [2024-11-17 03:21:31,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 189 transitions, 1467 flow [2024-11-17 03:21:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:21:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 03:21:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-11-17 03:21:31,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.548 [2024-11-17 03:21:31,031 INFO L175 Difference]: Start difference. First operand has 88 places, 62 transitions, 526 flow. Second operand 10 states and 274 transitions. [2024-11-17 03:21:31,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 189 transitions, 1467 flow [2024-11-17 03:21:31,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 189 transitions, 1391 flow, removed 13 selfloop flow, removed 8 redundant places. [2024-11-17 03:21:31,714 INFO L231 Difference]: Finished difference. Result has 96 places, 65 transitions, 627 flow [2024-11-17 03:21:31,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=627, PETRI_PLACES=96, PETRI_TRANSITIONS=65} [2024-11-17 03:21:31,715 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 40 predicate places. [2024-11-17 03:21:31,715 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 65 transitions, 627 flow [2024-11-17 03:21:31,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-17 03:21:31,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:21:31,716 INFO L204 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] [2024-11-17 03:21:31,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:21:31,716 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:21:31,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:21:31,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1044447956, now seen corresponding path program 1 times [2024-11-17 03:21:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:21:31,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715070936] [2024-11-17 03:21:31,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:21:31,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:21:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:21:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:21:32,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:21:32,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715070936] [2024-11-17 03:21:32,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715070936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:21:32,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:21:32,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:21:32,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928385486] [2024-11-17 03:21:32,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:21:32,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:21:32,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:21:32,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:21:32,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:21:32,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-11-17 03:21:32,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 65 transitions, 627 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 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) [2024-11-17 03:21:32,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:21:32,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-11-17 03:21:32,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand