./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 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/weaver/popl20-counter-determinism.wvr.c -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 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 01:07:25,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 01:07:25,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 01:07:25,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 01:07:25,997 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 01:07:26,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 01:07:26,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 01:07:26,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 01:07:26,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 01:07:26,011 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 01:07:26,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 01:07:26,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 01:07:26,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 01:07:26,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 01:07:26,011 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 01:07:26,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 01:07:26,011 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 01:07:26,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 01:07:26,012 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 01:07:26,013 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:07:26,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:07:26,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 01:07:26,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 01:07:26,014 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 -> 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 [2025-01-10 01:07:26,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 01:07:26,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 01:07:26,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 01:07:26,190 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 01:07:26,190 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 01:07:26,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2025-01-10 01:07:27,535 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0f802486d/a4fd015c4d574aa48ba2c37aaf92fbf8/FLAG87c413fe9 [2025-01-10 01:07:27,813 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 01:07:27,814 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2025-01-10 01:07:27,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0f802486d/a4fd015c4d574aa48ba2c37aaf92fbf8/FLAG87c413fe9 [2025-01-10 01:07:27,872 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0f802486d/a4fd015c4d574aa48ba2c37aaf92fbf8 [2025-01-10 01:07:27,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 01:07:27,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 01:07:27,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 01:07:27,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 01:07:27,881 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 01:07:27,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:07:27" (1/1) ... [2025-01-10 01:07:27,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@660fd5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:27, skipping insertion in model container [2025-01-10 01:07:27,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:07:27" (1/1) ... [2025-01-10 01:07:27,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 01:07:28,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:07:28,014 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 01:07:28,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 01:07:28,042 INFO L204 MainTranslator]: Completed translation [2025-01-10 01:07:28,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28 WrapperNode [2025-01-10 01:07:28,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 01:07:28,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 01:07:28,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 01:07:28,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 01:07:28,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,071 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2025-01-10 01:07:28,073 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 01:07:28,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 01:07:28,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 01:07:28,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 01:07:28,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,079 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,091 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]. [2025-01-10 01:07:28,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,098 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 01:07:28,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 01:07:28,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 01:07:28,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 01:07:28,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (1/1) ... [2025-01-10 01:07:28,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 01:07:28,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:07:28,137 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) [2025-01-10 01:07:28,140 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 [2025-01-10 01:07:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 01:07:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 01:07:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 01:07:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 01:07:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 01:07:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-10 01:07:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-10 01:07:28,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-01-10 01:07:28,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-01-10 01:07:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 01:07:28,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 01:07:28,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 01:07:28,160 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 01:07:28,233 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 01:07:28,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 01:07:28,412 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 01:07:28,413 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 01:07:28,519 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 01:07:28,519 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 01:07:28,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:07:28 BoogieIcfgContainer [2025-01-10 01:07:28,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 01:07:28,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 01:07:28,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 01:07:28,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 01:07:28,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:07:27" (1/3) ... [2025-01-10 01:07:28,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c50e65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:07:28, skipping insertion in model container [2025-01-10 01:07:28,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:07:28" (2/3) ... [2025-01-10 01:07:28,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c50e65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:07:28, skipping insertion in model container [2025-01-10 01:07:28,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:07:28" (3/3) ... [2025-01-10 01:07:28,526 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2025-01-10 01:07:28,537 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 01:07:28,538 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-counter-determinism.wvr.c that has 5 procedures, 39 locations, 1 initial locations, 4 loop locations, and 2 error locations. [2025-01-10 01:07:28,538 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 01:07:28,589 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-10 01:07:28,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 112 flow [2025-01-10 01:07:28,656 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2025-01-10 01:07:28,660 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-10 01:07:28,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 38 events. 4/38 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 52 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2025-01-10 01:07:28,668 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 112 flow [2025-01-10 01:07:28,670 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 37 transitions, 98 flow [2025-01-10 01:07:28,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 01:07:28,694 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;@41080312, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 01:07:28,695 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-01-10 01:07:28,708 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 01:07:28,709 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2025-01-10 01:07:28,709 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-10 01:07:28,709 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:28,710 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:28,710 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:28,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1105077931, now seen corresponding path program 1 times [2025-01-10 01:07:28,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:28,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642922153] [2025-01-10 01:07:28,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:07:28,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:28,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-10 01:07:28,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-10 01:07:28,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:07:28,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:29,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:29,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642922153] [2025-01-10 01:07:29,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642922153] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:29,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:29,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 01:07:29,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781041801] [2025-01-10 01:07:29,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:29,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 01:07:29,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:29,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 01:07:29,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 01:07:29,035 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2025-01-10 01:07:29,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-10 01:07:29,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:29,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2025-01-10 01:07:29,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:29,659 INFO L124 PetriNetUnfolderBase]: 4206/5691 cut-off events. [2025-01-10 01:07:29,659 INFO L125 PetriNetUnfolderBase]: For 474/474 co-relation queries the response was YES. [2025-01-10 01:07:29,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11679 conditions, 5691 events. 4206/5691 cut-off events. For 474/474 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 24075 event pairs, 1080 based on Foata normal form. 2/5302 useless extension candidates. Maximal degree in co-relation 10316. Up to 4714 conditions per place. [2025-01-10 01:07:29,700 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 48 selfloop transitions, 3 changer transitions 2/56 dead transitions. [2025-01-10 01:07:29,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 263 flow [2025-01-10 01:07:29,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 01:07:29,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 01:07:29,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2025-01-10 01:07:29,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2025-01-10 01:07:29,717 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 98 flow. Second operand 3 states and 81 transitions. [2025-01-10 01:07:29,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 263 flow [2025-01-10 01:07:29,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 56 transitions, 233 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-01-10 01:07:29,733 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 101 flow [2025-01-10 01:07:29,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2025-01-10 01:07:29,739 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2025-01-10 01:07:29,740 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 101 flow [2025-01-10 01:07:29,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-01-10 01:07:29,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:29,741 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:29,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 01:07:29,741 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:29,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2038924414, now seen corresponding path program 1 times [2025-01-10 01:07:29,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:29,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471674908] [2025-01-10 01:07:29,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:07:29,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:29,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:07:29,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:29,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:07:29,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:29,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:29,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471674908] [2025-01-10 01:07:29,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471674908] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:29,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:29,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:29,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134976469] [2025-01-10 01:07:29,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:29,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:29,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:29,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:29,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:29,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:29,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:29,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:29,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:29,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:30,750 INFO L124 PetriNetUnfolderBase]: 9567/12582 cut-off events. [2025-01-10 01:07:30,750 INFO L125 PetriNetUnfolderBase]: For 1507/1507 co-relation queries the response was YES. [2025-01-10 01:07:30,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27992 conditions, 12582 events. 9567/12582 cut-off events. For 1507/1507 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 59752 event pairs, 3002 based on Foata normal form. 0/11905 useless extension candidates. Maximal degree in co-relation 3416. Up to 6920 conditions per place. [2025-01-10 01:07:30,805 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 94 selfloop transitions, 10 changer transitions 0/106 dead transitions. [2025-01-10 01:07:30,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 106 transitions, 491 flow [2025-01-10 01:07:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:07:30,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:07:30,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2025-01-10 01:07:30,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2025-01-10 01:07:30,809 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 101 flow. Second operand 5 states and 133 transitions. [2025-01-10 01:07:30,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 106 transitions, 491 flow [2025-01-10 01:07:30,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 106 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:07:30,812 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 161 flow [2025-01-10 01:07:30,813 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2025-01-10 01:07:30,813 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-01-10 01:07:30,813 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 161 flow [2025-01-10 01:07:30,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:30,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:30,814 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:30,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 01:07:30,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:30,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1191980132, now seen corresponding path program 2 times [2025-01-10 01:07:30,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:30,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676291466] [2025-01-10 01:07:30,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:07:30,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:30,831 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-10 01:07:30,848 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:30,848 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:07:30,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:30,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676291466] [2025-01-10 01:07:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676291466] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:07:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397436893] [2025-01-10 01:07:30,931 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:07:30,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:07:30,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:07:30,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:07:30,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 01:07:30,974 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-10 01:07:30,991 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:30,992 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:07:30,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:30,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 01:07:30,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:07:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:31,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:07:31,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:31,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397436893] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:07:31,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:07:31,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2025-01-10 01:07:31,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382264980] [2025-01-10 01:07:31,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:07:31,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 01:07:31,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:31,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 01:07:31,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-10 01:07:31,078 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:31,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 161 flow. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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) [2025-01-10 01:07:31,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:31,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:31,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:32,220 INFO L124 PetriNetUnfolderBase]: 13384/17547 cut-off events. [2025-01-10 01:07:32,220 INFO L125 PetriNetUnfolderBase]: For 6108/6108 co-relation queries the response was YES. [2025-01-10 01:07:32,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45646 conditions, 17547 events. 13384/17547 cut-off events. For 6108/6108 co-relation queries the response was YES. Maximal size of possible extension queue 700. Compared 87099 event pairs, 1081 based on Foata normal form. 332/17873 useless extension candidates. Maximal degree in co-relation 25859. Up to 3569 conditions per place. [2025-01-10 01:07:32,309 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 239 selfloop transitions, 36 changer transitions 0/277 dead transitions. [2025-01-10 01:07:32,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 277 transitions, 1362 flow [2025-01-10 01:07:32,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 01:07:32,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-10 01:07:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 360 transitions. [2025-01-10 01:07:32,311 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6122448979591837 [2025-01-10 01:07:32,311 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 161 flow. Second operand 14 states and 360 transitions. [2025-01-10 01:07:32,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 277 transitions, 1362 flow [2025-01-10 01:07:32,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 277 transitions, 1362 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 01:07:32,318 INFO L231 Difference]: Finished difference. Result has 64 places, 74 transitions, 411 flow [2025-01-10 01:07:32,318 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=411, PETRI_PLACES=64, PETRI_TRANSITIONS=74} [2025-01-10 01:07:32,319 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places. [2025-01-10 01:07:32,319 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 74 transitions, 411 flow [2025-01-10 01:07:32,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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) [2025-01-10 01:07:32,319 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:32,319 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:32,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 01:07:32,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:07:32,520 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:32,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:32,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2110438902, now seen corresponding path program 1 times [2025-01-10 01:07:32,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:32,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417393681] [2025-01-10 01:07:32,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 01:07:32,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:32,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:07:32,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:32,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 01:07:32,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:32,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:32,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417393681] [2025-01-10 01:07:32,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417393681] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:32,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:32,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:32,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855500768] [2025-01-10 01:07:32,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:32,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:32,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:32,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:32,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:32,609 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:32,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 74 transitions, 411 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:32,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:32,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:32,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:33,703 INFO L124 PetriNetUnfolderBase]: 14664/19469 cut-off events. [2025-01-10 01:07:33,707 INFO L125 PetriNetUnfolderBase]: For 23637/23637 co-relation queries the response was YES. [2025-01-10 01:07:33,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59568 conditions, 19469 events. 14664/19469 cut-off events. For 23637/23637 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 99700 event pairs, 4340 based on Foata normal form. 0/18494 useless extension candidates. Maximal degree in co-relation 50453. Up to 9252 conditions per place. [2025-01-10 01:07:33,899 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 101 selfloop transitions, 13 changer transitions 15/133 dead transitions. [2025-01-10 01:07:33,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 133 transitions, 850 flow [2025-01-10 01:07:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:07:33,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:07:33,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2025-01-10 01:07:33,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2025-01-10 01:07:33,901 INFO L175 Difference]: Start difference. First operand has 64 places, 74 transitions, 411 flow. Second operand 5 states and 131 transitions. [2025-01-10 01:07:33,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 133 transitions, 850 flow [2025-01-10 01:07:34,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 133 transitions, 815 flow, removed 12 selfloop flow, removed 1 redundant places. [2025-01-10 01:07:34,271 INFO L231 Difference]: Finished difference. Result has 69 places, 74 transitions, 419 flow [2025-01-10 01:07:34,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=419, PETRI_PLACES=69, PETRI_TRANSITIONS=74} [2025-01-10 01:07:34,272 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 23 predicate places. [2025-01-10 01:07:34,272 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 74 transitions, 419 flow [2025-01-10 01:07:34,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:34,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:34,272 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:34,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 01:07:34,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:34,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash -146096344, now seen corresponding path program 2 times [2025-01-10 01:07:34,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408935127] [2025-01-10 01:07:34,273 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 01:07:34,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:34,278 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:07:34,281 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:34,282 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 01:07:34,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:34,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:34,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408935127] [2025-01-10 01:07:34,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408935127] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:34,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:34,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285225929] [2025-01-10 01:07:34,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:34,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:34,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:34,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:34,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:34,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:34,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 74 transitions, 419 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:34,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:34,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:34,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:35,680 INFO L124 PetriNetUnfolderBase]: 21319/28231 cut-off events. [2025-01-10 01:07:35,680 INFO L125 PetriNetUnfolderBase]: For 38753/38753 co-relation queries the response was YES. [2025-01-10 01:07:35,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88647 conditions, 28231 events. 21319/28231 cut-off events. For 38753/38753 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 147170 event pairs, 6354 based on Foata normal form. 0/26847 useless extension candidates. Maximal degree in co-relation 69567. Up to 12477 conditions per place. [2025-01-10 01:07:35,878 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 137 selfloop transitions, 19 changer transitions 2/162 dead transitions. [2025-01-10 01:07:35,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 162 transitions, 1137 flow [2025-01-10 01:07:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:07:35,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:07:35,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2025-01-10 01:07:35,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-01-10 01:07:35,883 INFO L175 Difference]: Start difference. First operand has 69 places, 74 transitions, 419 flow. Second operand 5 states and 132 transitions. [2025-01-10 01:07:35,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 162 transitions, 1137 flow [2025-01-10 01:07:36,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 162 transitions, 1079 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-01-10 01:07:36,174 INFO L231 Difference]: Finished difference. Result has 72 places, 82 transitions, 514 flow [2025-01-10 01:07:36,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=514, PETRI_PLACES=72, PETRI_TRANSITIONS=82} [2025-01-10 01:07:36,175 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2025-01-10 01:07:36,177 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 82 transitions, 514 flow [2025-01-10 01:07:36,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:36,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:36,177 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:36,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 01:07:36,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:36,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:36,178 INFO L85 PathProgramCache]: Analyzing trace with hash 388282060, now seen corresponding path program 3 times [2025-01-10 01:07:36,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:36,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663836166] [2025-01-10 01:07:36,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:07:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:36,188 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:07:36,193 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:36,195 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-10 01:07:36,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:36,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:36,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663836166] [2025-01-10 01:07:36,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663836166] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:36,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:36,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:36,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514420284] [2025-01-10 01:07:36,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:36,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:36,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:36,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:36,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:36,262 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:36,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 82 transitions, 514 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:36,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:36,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:36,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:37,975 INFO L124 PetriNetUnfolderBase]: 25589/33762 cut-off events. [2025-01-10 01:07:37,975 INFO L125 PetriNetUnfolderBase]: For 59851/59851 co-relation queries the response was YES. [2025-01-10 01:07:38,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111989 conditions, 33762 events. 25589/33762 cut-off events. For 59851/59851 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 178577 event pairs, 8135 based on Foata normal form. 0/32083 useless extension candidates. Maximal degree in co-relation 96734. Up to 18469 conditions per place. [2025-01-10 01:07:38,189 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 134 selfloop transitions, 30 changer transitions 2/170 dead transitions. [2025-01-10 01:07:38,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 170 transitions, 1330 flow [2025-01-10 01:07:38,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:07:38,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:07:38,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2025-01-10 01:07:38,190 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-01-10 01:07:38,190 INFO L175 Difference]: Start difference. First operand has 72 places, 82 transitions, 514 flow. Second operand 5 states and 132 transitions. [2025-01-10 01:07:38,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 170 transitions, 1330 flow [2025-01-10 01:07:38,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 170 transitions, 1274 flow, removed 16 selfloop flow, removed 1 redundant places. [2025-01-10 01:07:38,648 INFO L231 Difference]: Finished difference. Result has 78 places, 99 transitions, 728 flow [2025-01-10 01:07:38,648 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=728, PETRI_PLACES=78, PETRI_TRANSITIONS=99} [2025-01-10 01:07:38,652 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 32 predicate places. [2025-01-10 01:07:38,652 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 99 transitions, 728 flow [2025-01-10 01:07:38,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:38,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:38,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:38,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 01:07:38,652 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:38,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:38,653 INFO L85 PathProgramCache]: Analyzing trace with hash -524987496, now seen corresponding path program 3 times [2025-01-10 01:07:38,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:38,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583998307] [2025-01-10 01:07:38,653 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:07:38,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:38,667 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 2 equivalence classes. [2025-01-10 01:07:38,676 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:38,676 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-10 01:07:38,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:38,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:38,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583998307] [2025-01-10 01:07:38,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583998307] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 01:07:38,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191163031] [2025-01-10 01:07:38,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 01:07:38,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:07:38,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 01:07:38,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 01:07:38,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 01:07:38,792 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 2 equivalence classes. [2025-01-10 01:07:38,811 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:38,811 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-10 01:07:38,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:38,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 01:07:38,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 01:07:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:38,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 01:07:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:38,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191163031] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 01:07:38,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 01:07:38,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2025-01-10 01:07:38,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931291568] [2025-01-10 01:07:38,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 01:07:38,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 01:07:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:38,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 01:07:38,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-01-10 01:07:38,905 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:38,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 99 transitions, 728 flow. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 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) [2025-01-10 01:07:38,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:38,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:38,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:41,185 INFO L124 PetriNetUnfolderBase]: 24896/32696 cut-off events. [2025-01-10 01:07:41,186 INFO L125 PetriNetUnfolderBase]: For 86069/89419 co-relation queries the response was YES. [2025-01-10 01:07:41,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119351 conditions, 32696 events. 24896/32696 cut-off events. For 86069/89419 co-relation queries the response was YES. Maximal size of possible extension queue 1173. Compared 170800 event pairs, 5363 based on Foata normal form. 484/33136 useless extension candidates. Maximal degree in co-relation 102432. Up to 12196 conditions per place. [2025-01-10 01:07:41,444 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 202 selfloop transitions, 49 changer transitions 0/253 dead transitions. [2025-01-10 01:07:41,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 253 transitions, 1995 flow [2025-01-10 01:07:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 01:07:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 01:07:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 217 transitions. [2025-01-10 01:07:41,446 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2025-01-10 01:07:41,446 INFO L175 Difference]: Start difference. First operand has 78 places, 99 transitions, 728 flow. Second operand 8 states and 217 transitions. [2025-01-10 01:07:41,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 253 transitions, 1995 flow [2025-01-10 01:07:41,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 253 transitions, 1949 flow, removed 7 selfloop flow, removed 1 redundant places. [2025-01-10 01:07:41,669 INFO L231 Difference]: Finished difference. Result has 89 places, 121 transitions, 1067 flow [2025-01-10 01:07:41,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1067, PETRI_PLACES=89, PETRI_TRANSITIONS=121} [2025-01-10 01:07:41,670 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 43 predicate places. [2025-01-10 01:07:41,670 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 121 transitions, 1067 flow [2025-01-10 01:07:41,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 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) [2025-01-10 01:07:41,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:41,670 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, 1, 1, 1, 1] [2025-01-10 01:07:41,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 01:07:41,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 01:07:41,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:41,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:41,872 INFO L85 PathProgramCache]: Analyzing trace with hash -12167958, now seen corresponding path program 4 times [2025-01-10 01:07:41,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:41,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112030652] [2025-01-10 01:07:41,872 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:07:41,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:41,882 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 26 statements into 2 equivalence classes. [2025-01-10 01:07:41,887 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 25 of 26 statements. [2025-01-10 01:07:41,888 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-10 01:07:41,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:41,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:41,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112030652] [2025-01-10 01:07:41,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112030652] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:41,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:41,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:41,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762426533] [2025-01-10 01:07:41,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:41,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:41,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:41,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:41,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:41,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2025-01-10 01:07:41,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 121 transitions, 1067 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2025-01-10 01:07:41,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:41,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2025-01-10 01:07:41,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:45,013 INFO L124 PetriNetUnfolderBase]: 39072/50814 cut-off events. [2025-01-10 01:07:45,013 INFO L125 PetriNetUnfolderBase]: For 165688/165688 co-relation queries the response was YES. [2025-01-10 01:07:45,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199998 conditions, 50814 events. 39072/50814 cut-off events. For 165688/165688 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 266376 event pairs, 7993 based on Foata normal form. 199/51013 useless extension candidates. Maximal degree in co-relation 174532. Up to 28146 conditions per place. [2025-01-10 01:07:45,826 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 249 selfloop transitions, 29 changer transitions 1/280 dead transitions. [2025-01-10 01:07:45,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 280 transitions, 2983 flow [2025-01-10 01:07:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:07:45,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:07:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2025-01-10 01:07:45,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2025-01-10 01:07:45,828 INFO L175 Difference]: Start difference. First operand has 89 places, 121 transitions, 1067 flow. Second operand 5 states and 124 transitions. [2025-01-10 01:07:45,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 280 transitions, 2983 flow [2025-01-10 01:07:46,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 280 transitions, 2871 flow, removed 31 selfloop flow, removed 1 redundant places. [2025-01-10 01:07:46,883 INFO L231 Difference]: Finished difference. Result has 95 places, 142 transitions, 1406 flow [2025-01-10 01:07:46,884 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1406, PETRI_PLACES=95, PETRI_TRANSITIONS=142} [2025-01-10 01:07:46,884 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 49 predicate places. [2025-01-10 01:07:46,884 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 142 transitions, 1406 flow [2025-01-10 01:07:46,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2025-01-10 01:07:46,884 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:46,884 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:46,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 01:07:46,887 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:46,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:46,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1174577106, now seen corresponding path program 4 times [2025-01-10 01:07:46,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:46,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321499910] [2025-01-10 01:07:46,887 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 01:07:46,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:46,892 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 26 statements into 2 equivalence classes. [2025-01-10 01:07:46,895 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 25 of 26 statements. [2025-01-10 01:07:46,896 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-10 01:07:46,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:46,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321499910] [2025-01-10 01:07:46,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321499910] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:46,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:46,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418370654] [2025-01-10 01:07:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:46,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:46,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:46,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:46,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:46,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2025-01-10 01:07:46,934 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 142 transitions, 1406 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2025-01-10 01:07:46,934 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:46,934 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2025-01-10 01:07:46,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:51,287 INFO L124 PetriNetUnfolderBase]: 54263/70532 cut-off events. [2025-01-10 01:07:51,288 INFO L125 PetriNetUnfolderBase]: For 276467/276467 co-relation queries the response was YES. [2025-01-10 01:07:51,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289430 conditions, 70532 events. 54263/70532 cut-off events. For 276467/276467 co-relation queries the response was YES. Maximal size of possible extension queue 1920. Compared 378889 event pairs, 21105 based on Foata normal form. 32/70564 useless extension candidates. Maximal degree in co-relation 256865. Up to 43982 conditions per place. [2025-01-10 01:07:51,882 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 280 selfloop transitions, 13 changer transitions 20/314 dead transitions. [2025-01-10 01:07:51,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 314 transitions, 3586 flow [2025-01-10 01:07:51,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:07:51,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:07:51,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2025-01-10 01:07:51,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2025-01-10 01:07:51,885 INFO L175 Difference]: Start difference. First operand has 95 places, 142 transitions, 1406 flow. Second operand 5 states and 120 transitions. [2025-01-10 01:07:51,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 314 transitions, 3586 flow [2025-01-10 01:07:53,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 314 transitions, 3572 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 01:07:53,322 INFO L231 Difference]: Finished difference. Result has 101 places, 145 transitions, 1490 flow [2025-01-10 01:07:53,323 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1395, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1490, PETRI_PLACES=101, PETRI_TRANSITIONS=145} [2025-01-10 01:07:53,323 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 55 predicate places. [2025-01-10 01:07:53,323 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 145 transitions, 1490 flow [2025-01-10 01:07:53,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2025-01-10 01:07:53,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:53,324 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:53,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 01:07:53,324 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:53,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash 536381960, now seen corresponding path program 5 times [2025-01-10 01:07:53,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:53,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157517499] [2025-01-10 01:07:53,326 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:07:53,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:53,332 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 26 statements into 2 equivalence classes. [2025-01-10 01:07:53,337 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:53,337 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 01:07:53,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:53,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:53,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157517499] [2025-01-10 01:07:53,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157517499] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:53,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:53,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:53,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008527568] [2025-01-10 01:07:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:53,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:53,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:53,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:53,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:53,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:53,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 145 transitions, 1490 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:53,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:53,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:53,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:07:57,422 INFO L124 PetriNetUnfolderBase]: 42724/55984 cut-off events. [2025-01-10 01:07:57,423 INFO L125 PetriNetUnfolderBase]: For 251753/257425 co-relation queries the response was YES. [2025-01-10 01:07:57,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240016 conditions, 55984 events. 42724/55984 cut-off events. For 251753/257425 co-relation queries the response was YES. Maximal size of possible extension queue 1931. Compared 314515 event pairs, 12389 based on Foata normal form. 128/55901 useless extension candidates. Maximal degree in co-relation 216135. Up to 27560 conditions per place. [2025-01-10 01:07:57,898 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 209 selfloop transitions, 23 changer transitions 7/241 dead transitions. [2025-01-10 01:07:57,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 241 transitions, 2667 flow [2025-01-10 01:07:57,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:07:57,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:07:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2025-01-10 01:07:57,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-01-10 01:07:57,902 INFO L175 Difference]: Start difference. First operand has 101 places, 145 transitions, 1490 flow. Second operand 5 states and 132 transitions. [2025-01-10 01:07:57,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 241 transitions, 2667 flow [2025-01-10 01:07:59,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 241 transitions, 2602 flow, removed 24 selfloop flow, removed 2 redundant places. [2025-01-10 01:07:59,425 INFO L231 Difference]: Finished difference. Result has 104 places, 148 transitions, 1578 flow [2025-01-10 01:07:59,426 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1463, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1578, PETRI_PLACES=104, PETRI_TRANSITIONS=148} [2025-01-10 01:07:59,426 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 58 predicate places. [2025-01-10 01:07:59,426 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 148 transitions, 1578 flow [2025-01-10 01:07:59,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:59,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:07:59,427 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:07:59,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 01:07:59,427 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:07:59,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:07:59,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1044217332, now seen corresponding path program 5 times [2025-01-10 01:07:59,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:07:59,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554027536] [2025-01-10 01:07:59,428 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-10 01:07:59,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:07:59,433 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:07:59,437 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:07:59,437 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 01:07:59,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:07:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:07:59,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:07:59,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554027536] [2025-01-10 01:07:59,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554027536] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:07:59,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:07:59,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 01:07:59,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330409905] [2025-01-10 01:07:59,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:07:59,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 01:07:59,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:07:59,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 01:07:59,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-01-10 01:07:59,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:07:59,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 148 transitions, 1578 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:07:59,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:07:59,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:07:59,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:08:04,094 INFO L124 PetriNetUnfolderBase]: 51683/67393 cut-off events. [2025-01-10 01:08:04,094 INFO L125 PetriNetUnfolderBase]: For 325924/326837 co-relation queries the response was YES. [2025-01-10 01:08:04,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285098 conditions, 67393 events. 51683/67393 cut-off events. For 325924/326837 co-relation queries the response was YES. Maximal size of possible extension queue 2273. Compared 376134 event pairs, 18974 based on Foata normal form. 718/67949 useless extension candidates. Maximal degree in co-relation 255644. Up to 43139 conditions per place. [2025-01-10 01:08:04,688 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 374 selfloop transitions, 18 changer transitions 9/406 dead transitions. [2025-01-10 01:08:04,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 406 transitions, 5102 flow [2025-01-10 01:08:04,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 01:08:04,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 01:08:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 128 transitions. [2025-01-10 01:08:04,689 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2025-01-10 01:08:04,689 INFO L175 Difference]: Start difference. First operand has 104 places, 148 transitions, 1578 flow. Second operand 5 states and 128 transitions. [2025-01-10 01:08:04,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 406 transitions, 5102 flow [2025-01-10 01:08:05,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 406 transitions, 4948 flow, removed 10 selfloop flow, removed 2 redundant places. [2025-01-10 01:08:05,867 INFO L231 Difference]: Finished difference. Result has 109 places, 154 transitions, 1634 flow [2025-01-10 01:08:05,867 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1634, PETRI_PLACES=109, PETRI_TRANSITIONS=154} [2025-01-10 01:08:05,869 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 63 predicate places. [2025-01-10 01:08:05,869 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 154 transitions, 1634 flow [2025-01-10 01:08:05,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2025-01-10 01:08:05,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 01:08:05,870 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 01:08:05,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 01:08:05,870 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-01-10 01:08:05,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 01:08:05,870 INFO L85 PathProgramCache]: Analyzing trace with hash -938335986, now seen corresponding path program 6 times [2025-01-10 01:08:05,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 01:08:05,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819347805] [2025-01-10 01:08:05,870 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-10 01:08:05,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 01:08:05,881 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 26 statements into 1 equivalence classes. [2025-01-10 01:08:05,887 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-01-10 01:08:05,887 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-10 01:08:05,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 01:08:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 01:08:05,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 01:08:05,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819347805] [2025-01-10 01:08:05,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819347805] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 01:08:05,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 01:08:05,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 01:08:05,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084835326] [2025-01-10 01:08:05,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 01:08:05,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 01:08:05,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 01:08:05,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 01:08:05,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-01-10 01:08:05,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-01-10 01:08:05,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 154 transitions, 1634 flow. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 01:08:05,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 01:08:05,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-01-10 01:08:05,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 01:08:12,253 INFO L124 PetriNetUnfolderBase]: 63304/83266 cut-off events. [2025-01-10 01:08:12,254 INFO L125 PetriNetUnfolderBase]: For 382678/388965 co-relation queries the response was YES. [2025-01-10 01:08:12,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364399 conditions, 83266 events. 63304/83266 cut-off events. For 382678/388965 co-relation queries the response was YES. Maximal size of possible extension queue 2953. Compared 494485 event pairs, 9781 based on Foata normal form. 1182/84276 useless extension candidates. Maximal degree in co-relation 334924. Up to 33488 conditions per place. [2025-01-10 01:08:13,144 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 239 selfloop transitions, 71 changer transitions 5/318 dead transitions. [2025-01-10 01:08:13,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 318 transitions, 3365 flow [2025-01-10 01:08:13,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 01:08:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 01:08:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2025-01-10 01:08:13,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6598639455782312 [2025-01-10 01:08:13,147 INFO L175 Difference]: Start difference. First operand has 109 places, 154 transitions, 1634 flow. Second operand 7 states and 194 transitions. [2025-01-10 01:08:13,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 318 transitions, 3365 flow