./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:23:29,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:23:29,923 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:23:29,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:23:29,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:23:29,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:23:29,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:23:29,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:23:29,966 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:23:29,966 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:23:29,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:23:29,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:23:29,967 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:23:29,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:23:29,968 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:23:29,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:23:29,969 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:23:29,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:23:29,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:23:29,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:23:29,971 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:23:29,971 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:23:29,971 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:23:29,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:23:29,972 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:23:29,973 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:23:29,973 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:23:29,973 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:23:29,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:23:29,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:23:29,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:23:29,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:23:29,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:23:29,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:23:29,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:23:29,976 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:23:29,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:23:29,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:23:29,977 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:23:29,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:23:29,978 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:23:29,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:23:29,979 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e136f4ab00a1c93eb400bb9f2a21b2887cfec20e18dff1c5960bc25f16f1bcad [2024-10-13 12:23:30,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:23:30,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:23:30,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:23:30,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:23:30,311 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:23:30,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-13 12:23:31,829 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:23:32,090 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:23:32,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-13 12:23:32,106 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f174de8eb/529f2614de0340b29b1eaec24e0676f8/FLAGecac2a28e [2024-10-13 12:23:32,123 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f174de8eb/529f2614de0340b29b1eaec24e0676f8 [2024-10-13 12:23:32,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:23:32,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:23:32,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:23:32,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:23:32,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:23:32,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6224b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32, skipping insertion in model container [2024-10-13 12:23:32,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,182 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:23:32,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:23:32,621 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:23:32,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:23:32,738 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:23:32,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32 WrapperNode [2024-10-13 12:23:32,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:23:32,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:23:32,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:23:32,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:23:32,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,802 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-10-13 12:23:32,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:23:32,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:23:32,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:23:32,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:23:32,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,857 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 12:23:32,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,870 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:23:32,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:23:32,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:23:32,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:23:32,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (1/1) ... [2024-10-13 12:23:32,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:23:32,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:23:32,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 12:23:32,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 12:23:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:23:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:23:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-13 12:23:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-13 12:23:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-13 12:23:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-13 12:23:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-13 12:23:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-13 12:23:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:23:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:23:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:23:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:23:32,990 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:23:33,120 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:23:33,123 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:23:33,279 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:23:33,280 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:23:33,369 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:23:33,369 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:23:33,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:33 BoogieIcfgContainer [2024-10-13 12:23:33,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:23:33,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:23:33,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:23:33,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:23:33,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:23:32" (1/3) ... [2024-10-13 12:23:33,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff7b7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:23:33, skipping insertion in model container [2024-10-13 12:23:33,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:23:32" (2/3) ... [2024-10-13 12:23:33,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff7b7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:23:33, skipping insertion in model container [2024-10-13 12:23:33,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:33" (3/3) ... [2024-10-13 12:23:33,383 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-13 12:23:33,402 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:23:33,402 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:23:33,403 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:23:33,464 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 12:23:33,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 42 transitions, 96 flow [2024-10-13 12:23:33,529 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-10-13 12:23:33,529 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:33,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 2/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-10-13 12:23:33,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 42 transitions, 96 flow [2024-10-13 12:23:33,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 38 transitions, 85 flow [2024-10-13 12:23:33,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:23:33,556 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;@361dcba8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:23:33,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-13 12:23:33,579 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:23:33,580 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2024-10-13 12:23:33,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:33,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:33,581 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:33,582 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:33,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash 41767399, now seen corresponding path program 1 times [2024-10-13 12:23:33,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:33,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300358012] [2024-10-13 12:23:33,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:33,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:33,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:33,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300358012] [2024-10-13 12:23:33,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300358012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:33,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:33,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 12:23:33,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723818243] [2024-10-13 12:23:33,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:34,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:23:34,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:23:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:23:34,073 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 42 [2024-10-13 12:23:34,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:34,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:34,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 42 [2024-10-13 12:23:34,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:34,183 INFO L124 PetriNetUnfolderBase]: 75/217 cut-off events. [2024-10-13 12:23:34,183 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:34,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 217 events. 75/217 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1172 event pairs, 75 based on Foata normal form. 24/223 useless extension candidates. Maximal degree in co-relation 361. Up to 136 conditions per place. [2024-10-13 12:23:34,190 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 12 selfloop transitions, 1 changer transitions 1/34 dead transitions. [2024-10-13 12:23:34,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 105 flow [2024-10-13 12:23:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:23:34,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 12:23:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-10-13 12:23:34,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-10-13 12:23:34,208 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 85 flow. Second operand 3 states and 86 transitions. [2024-10-13 12:23:34,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 105 flow [2024-10-13 12:23:34,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 102 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 12:23:34,215 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2024-10-13 12:23:34,220 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2024-10-13 12:23:34,230 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2024-10-13 12:23:34,233 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2024-10-13 12:23:34,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:34,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:34,234 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:34,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:23:34,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:34,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 41768954, now seen corresponding path program 1 times [2024-10-13 12:23:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:34,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973262314] [2024-10-13 12:23:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:34,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:34,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:34,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:34,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973262314] [2024-10-13 12:23:34,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973262314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:34,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:34,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:23:34,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868161333] [2024-10-13 12:23:34,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:34,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:23:34,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:34,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:23:34,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:23:34,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 42 [2024-10-13 12:23:34,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:34,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:34,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 42 [2024-10-13 12:23:34,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:35,007 INFO L124 PetriNetUnfolderBase]: 421/834 cut-off events. [2024-10-13 12:23:35,008 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 12:23:35,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 834 events. 421/834 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5179 event pairs, 178 based on Foata normal form. 0/792 useless extension candidates. Maximal degree in co-relation 1536. Up to 411 conditions per place. [2024-10-13 12:23:35,017 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 23 selfloop transitions, 3 changer transitions 30/71 dead transitions. [2024-10-13 12:23:35,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 266 flow [2024-10-13 12:23:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:23:35,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 12:23:35,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2024-10-13 12:23:35,021 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-13 12:23:35,021 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 8 states and 210 transitions. [2024-10-13 12:23:35,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 266 flow [2024-10-13 12:23:35,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 71 transitions, 265 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 12:23:35,026 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 106 flow [2024-10-13 12:23:35,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=106, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2024-10-13 12:23:35,028 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 7 predicate places. [2024-10-13 12:23:35,029 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 106 flow [2024-10-13 12:23:35,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:35,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:35,030 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:35,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:23:35,030 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:35,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:35,031 INFO L85 PathProgramCache]: Analyzing trace with hash -2014766247, now seen corresponding path program 1 times [2024-10-13 12:23:35,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:35,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860130842] [2024-10-13 12:23:35,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:35,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:35,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:35,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860130842] [2024-10-13 12:23:35,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860130842] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:35,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:35,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:35,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494416357] [2024-10-13 12:23:35,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:35,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:35,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:35,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:35,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-10-13 12:23:35,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 106 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:35,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:35,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-10-13 12:23:35,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:35,751 INFO L124 PetriNetUnfolderBase]: 511/1027 cut-off events. [2024-10-13 12:23:35,752 INFO L125 PetriNetUnfolderBase]: For 701/701 co-relation queries the response was YES. [2024-10-13 12:23:35,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 1027 events. 511/1027 cut-off events. For 701/701 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 6819 event pairs, 82 based on Foata normal form. 30/1042 useless extension candidates. Maximal degree in co-relation 2365. Up to 321 conditions per place. [2024-10-13 12:23:35,766 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 40 selfloop transitions, 8 changer transitions 38/100 dead transitions. [2024-10-13 12:23:35,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 100 transitions, 496 flow [2024-10-13 12:23:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 12:23:35,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 12:23:35,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 323 transitions. [2024-10-13 12:23:35,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5915750915750916 [2024-10-13 12:23:35,769 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 106 flow. Second operand 13 states and 323 transitions. [2024-10-13 12:23:35,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 100 transitions, 496 flow [2024-10-13 12:23:35,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 100 transitions, 469 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-10-13 12:23:35,781 INFO L231 Difference]: Finished difference. Result has 67 places, 39 transitions, 190 flow [2024-10-13 12:23:35,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=190, PETRI_PLACES=67, PETRI_TRANSITIONS=39} [2024-10-13 12:23:35,783 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places. [2024-10-13 12:23:35,783 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 39 transitions, 190 flow [2024-10-13 12:23:35,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:35,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:35,784 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:35,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:23:35,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:35,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:35,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1486249929, now seen corresponding path program 1 times [2024-10-13 12:23:35,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:35,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538055296] [2024-10-13 12:23:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:35,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:35,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:35,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538055296] [2024-10-13 12:23:35,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538055296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:35,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:35,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:35,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275452499] [2024-10-13 12:23:35,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:35,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:35,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:35,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:35,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:35,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 42 [2024-10-13 12:23:35,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 39 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:35,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:35,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 42 [2024-10-13 12:23:35,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:36,192 INFO L124 PetriNetUnfolderBase]: 329/715 cut-off events. [2024-10-13 12:23:36,192 INFO L125 PetriNetUnfolderBase]: For 2136/2136 co-relation queries the response was YES. [2024-10-13 12:23:36,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2309 conditions, 715 events. 329/715 cut-off events. For 2136/2136 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4555 event pairs, 78 based on Foata normal form. 24/717 useless extension candidates. Maximal degree in co-relation 2287. Up to 372 conditions per place. [2024-10-13 12:23:36,203 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 27 selfloop transitions, 4 changer transitions 23/70 dead transitions. [2024-10-13 12:23:36,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 70 transitions, 464 flow [2024-10-13 12:23:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:23:36,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 12:23:36,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2024-10-13 12:23:36,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6054421768707483 [2024-10-13 12:23:36,208 INFO L175 Difference]: Start difference. First operand has 67 places, 39 transitions, 190 flow. Second operand 7 states and 178 transitions. [2024-10-13 12:23:36,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 70 transitions, 464 flow [2024-10-13 12:23:36,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 70 transitions, 409 flow, removed 25 selfloop flow, removed 7 redundant places. [2024-10-13 12:23:36,222 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 187 flow [2024-10-13 12:23:36,223 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=187, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2024-10-13 12:23:36,224 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2024-10-13 12:23:36,225 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 187 flow [2024-10-13 12:23:36,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:36,225 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:36,225 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:36,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:23:36,226 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:36,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:36,226 INFO L85 PathProgramCache]: Analyzing trace with hash 247383691, now seen corresponding path program 1 times [2024-10-13 12:23:36,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:36,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616831434] [2024-10-13 12:23:36,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:36,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:36,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:36,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616831434] [2024-10-13 12:23:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616831434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:36,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:36,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:36,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136246814] [2024-10-13 12:23:36,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:36,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:36,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:36,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:36,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:36,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-10-13 12:23:36,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:36,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:36,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-10-13 12:23:36,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:36,590 INFO L124 PetriNetUnfolderBase]: 310/669 cut-off events. [2024-10-13 12:23:36,591 INFO L125 PetriNetUnfolderBase]: For 1333/1365 co-relation queries the response was YES. [2024-10-13 12:23:36,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1910 conditions, 669 events. 310/669 cut-off events. For 1333/1365 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4228 event pairs, 97 based on Foata normal form. 28/663 useless extension candidates. Maximal degree in co-relation 1888. Up to 148 conditions per place. [2024-10-13 12:23:36,597 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 20 selfloop transitions, 3 changer transitions 25/64 dead transitions. [2024-10-13 12:23:36,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 361 flow [2024-10-13 12:23:36,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:23:36,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 12:23:36,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 204 transitions. [2024-10-13 12:23:36,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-10-13 12:23:36,600 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 187 flow. Second operand 8 states and 204 transitions. [2024-10-13 12:23:36,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 361 flow [2024-10-13 12:23:36,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 325 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-10-13 12:23:36,606 INFO L231 Difference]: Finished difference. Result has 65 places, 32 transitions, 133 flow [2024-10-13 12:23:36,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=133, PETRI_PLACES=65, PETRI_TRANSITIONS=32} [2024-10-13 12:23:36,607 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2024-10-13 12:23:36,607 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 32 transitions, 133 flow [2024-10-13 12:23:36,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:36,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:36,608 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:36,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:23:36,608 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:36,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:36,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2055534897, now seen corresponding path program 1 times [2024-10-13 12:23:36,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:36,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037703897] [2024-10-13 12:23:36,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:36,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:36,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:36,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037703897] [2024-10-13 12:23:36,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037703897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:36,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:36,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:23:36,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202091499] [2024-10-13 12:23:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:36,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 12:23:36,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 12:23:36,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 12:23:36,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-10-13 12:23:36,770 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 32 transitions, 133 flow. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:36,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:36,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-10-13 12:23:36,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:37,008 INFO L124 PetriNetUnfolderBase]: 325/655 cut-off events. [2024-10-13 12:23:37,009 INFO L125 PetriNetUnfolderBase]: For 1326/1326 co-relation queries the response was YES. [2024-10-13 12:23:37,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1971 conditions, 655 events. 325/655 cut-off events. For 1326/1326 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3588 event pairs, 106 based on Foata normal form. 18/656 useless extension candidates. Maximal degree in co-relation 1948. Up to 219 conditions per place. [2024-10-13 12:23:37,016 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 22 selfloop transitions, 3 changer transitions 29/68 dead transitions. [2024-10-13 12:23:37,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 68 transitions, 425 flow [2024-10-13 12:23:37,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:23:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 12:23:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-10-13 12:23:37,018 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2024-10-13 12:23:37,018 INFO L175 Difference]: Start difference. First operand has 65 places, 32 transitions, 133 flow. Second operand 8 states and 200 transitions. [2024-10-13 12:23:37,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 68 transitions, 425 flow [2024-10-13 12:23:37,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 326 flow, removed 36 selfloop flow, removed 15 redundant places. [2024-10-13 12:23:37,024 INFO L231 Difference]: Finished difference. Result has 58 places, 32 transitions, 113 flow [2024-10-13 12:23:37,024 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=113, PETRI_PLACES=58, PETRI_TRANSITIONS=32} [2024-10-13 12:23:37,025 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 12 predicate places. [2024-10-13 12:23:37,025 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 32 transitions, 113 flow [2024-10-13 12:23:37,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 7 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,026 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:37,026 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:37,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:23:37,026 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:37,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:37,027 INFO L85 PathProgramCache]: Analyzing trace with hash -866081834, now seen corresponding path program 1 times [2024-10-13 12:23:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:37,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014953570] [2024-10-13 12:23:37,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:37,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:37,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014953570] [2024-10-13 12:23:37,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014953570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:37,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:37,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:23:37,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279095208] [2024-10-13 12:23:37,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:37,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:23:37,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:37,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:23:37,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:23:37,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-10-13 12:23:37,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 32 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:37,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-10-13 12:23:37,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:37,241 INFO L124 PetriNetUnfolderBase]: 370/727 cut-off events. [2024-10-13 12:23:37,242 INFO L125 PetriNetUnfolderBase]: For 578/578 co-relation queries the response was YES. [2024-10-13 12:23:37,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 727 events. 370/727 cut-off events. For 578/578 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4001 event pairs, 78 based on Foata normal form. 27/724 useless extension candidates. Maximal degree in co-relation 1713. Up to 353 conditions per place. [2024-10-13 12:23:37,249 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 24 selfloop transitions, 5 changer transitions 1/45 dead transitions. [2024-10-13 12:23:37,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 45 transitions, 201 flow [2024-10-13 12:23:37,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:23:37,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 12:23:37,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2024-10-13 12:23:37,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-13 12:23:37,252 INFO L175 Difference]: Start difference. First operand has 58 places, 32 transitions, 113 flow. Second operand 4 states and 112 transitions. [2024-10-13 12:23:37,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 45 transitions, 201 flow [2024-10-13 12:23:37,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 181 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-10-13 12:23:37,256 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 127 flow [2024-10-13 12:23:37,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2024-10-13 12:23:37,257 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2024-10-13 12:23:37,257 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 127 flow [2024-10-13 12:23:37,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:37,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:37,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:23:37,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:37,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:37,259 INFO L85 PathProgramCache]: Analyzing trace with hash 660738135, now seen corresponding path program 1 times [2024-10-13 12:23:37,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:37,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332357522] [2024-10-13 12:23:37,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:37,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:37,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:37,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332357522] [2024-10-13 12:23:37,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332357522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:37,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:37,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:23:37,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191809607] [2024-10-13 12:23:37,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:37,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:23:37,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:37,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:23:37,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:23:37,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-10-13 12:23:37,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:37,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-10-13 12:23:37,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:37,535 INFO L124 PetriNetUnfolderBase]: 285/569 cut-off events. [2024-10-13 12:23:37,535 INFO L125 PetriNetUnfolderBase]: For 275/362 co-relation queries the response was YES. [2024-10-13 12:23:37,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 569 events. 285/569 cut-off events. For 275/362 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2690 event pairs, 27 based on Foata normal form. 30/578 useless extension candidates. Maximal degree in co-relation 1398. Up to 245 conditions per place. [2024-10-13 12:23:37,541 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 28 selfloop transitions, 8 changer transitions 1/52 dead transitions. [2024-10-13 12:23:37,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 52 transitions, 252 flow [2024-10-13 12:23:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:23:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 12:23:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-10-13 12:23:37,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6619047619047619 [2024-10-13 12:23:37,543 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 127 flow. Second operand 5 states and 139 transitions. [2024-10-13 12:23:37,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 52 transitions, 252 flow [2024-10-13 12:23:37,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 242 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 12:23:37,545 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 167 flow [2024-10-13 12:23:37,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=167, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2024-10-13 12:23:37,546 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-10-13 12:23:37,546 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 167 flow [2024-10-13 12:23:37,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:37,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:37,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 12:23:37,548 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:37,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:37,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1363049494, now seen corresponding path program 1 times [2024-10-13 12:23:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:37,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228869002] [2024-10-13 12:23:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:37,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:37,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228869002] [2024-10-13 12:23:37,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228869002] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:37,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:37,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:23:37,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761703581] [2024-10-13 12:23:37,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:37,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:37,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:37,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:37,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:37,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-10-13 12:23:37,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 167 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:37,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-10-13 12:23:37,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:37,780 INFO L124 PetriNetUnfolderBase]: 162/320 cut-off events. [2024-10-13 12:23:37,781 INFO L125 PetriNetUnfolderBase]: For 370/491 co-relation queries the response was YES. [2024-10-13 12:23:37,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 320 events. 162/320 cut-off events. For 370/491 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1101 event pairs, 6 based on Foata normal form. 28/334 useless extension candidates. Maximal degree in co-relation 876. Up to 84 conditions per place. [2024-10-13 12:23:37,784 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 26 selfloop transitions, 11 changer transitions 1/53 dead transitions. [2024-10-13 12:23:37,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 279 flow [2024-10-13 12:23:37,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:23:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:23:37,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-10-13 12:23:37,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2024-10-13 12:23:37,786 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 167 flow. Second operand 6 states and 160 transitions. [2024-10-13 12:23:37,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 279 flow [2024-10-13 12:23:37,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 236 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-10-13 12:23:37,789 INFO L231 Difference]: Finished difference. Result has 54 places, 38 transitions, 163 flow [2024-10-13 12:23:37,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=54, PETRI_TRANSITIONS=38} [2024-10-13 12:23:37,791 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2024-10-13 12:23:37,791 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 38 transitions, 163 flow [2024-10-13 12:23:37,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:23:37,792 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:37,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 12:23:37,792 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:23:37,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:23:37,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1689631471, now seen corresponding path program 1 times [2024-10-13 12:23:37,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:23:37,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993339514] [2024-10-13 12:23:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:23:37,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:23:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:23:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:23:37,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:23:37,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993339514] [2024-10-13 12:23:37,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993339514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:23:37,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:23:37,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:23:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309239872] [2024-10-13 12:23:37,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:23:37,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:23:37,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:23:37,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:23:37,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:23:37,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-10-13 12:23:37,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 38 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:37,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:23:37,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-10-13 12:23:37,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:23:38,095 INFO L124 PetriNetUnfolderBase]: 97/229 cut-off events. [2024-10-13 12:23:38,096 INFO L125 PetriNetUnfolderBase]: For 182/186 co-relation queries the response was YES. [2024-10-13 12:23:38,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 229 events. 97/229 cut-off events. For 182/186 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 786 event pairs, 6 based on Foata normal form. 8/222 useless extension candidates. Maximal degree in co-relation 575. Up to 84 conditions per place. [2024-10-13 12:23:38,097 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2024-10-13 12:23:38,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 47 transitions, 237 flow [2024-10-13 12:23:38,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:23:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:23:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2024-10-13 12:23:38,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-10-13 12:23:38,099 INFO L175 Difference]: Start difference. First operand has 54 places, 38 transitions, 163 flow. Second operand 6 states and 148 transitions. [2024-10-13 12:23:38,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 47 transitions, 237 flow [2024-10-13 12:23:38,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 181 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-10-13 12:23:38,100 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2024-10-13 12:23:38,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2024-10-13 12:23:38,103 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 2 predicate places. [2024-10-13 12:23:38,103 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2024-10-13 12:23:38,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:23:38,107 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-13 12:23:38,109 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-13 12:23:38,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-13 12:23:38,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-13 12:23:38,110 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-13 12:23:38,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 12:23:38,111 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:23:38,115 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 12:23:38,118 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:23:38,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:23:38 BasicIcfg [2024-10-13 12:23:38,125 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:23:38,126 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:23:38,126 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:23:38,126 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:23:38,127 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:23:33" (3/4) ... [2024-10-13 12:23:38,129 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:23:38,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-13 12:23:38,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-13 12:23:38,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-13 12:23:38,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-10-13 12:23:38,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-13 12:23:38,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-13 12:23:38,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 12:23:38,228 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:23:38,228 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:23:38,229 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:23:38,229 INFO L158 Benchmark]: Toolchain (without parser) took 6102.97ms. Allocated memory was 176.2MB in the beginning and 251.7MB in the end (delta: 75.5MB). Free memory was 119.3MB in the beginning and 85.7MB in the end (delta: 33.6MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2024-10-13 12:23:38,230 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 176.2MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:23:38,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.37ms. Allocated memory is still 176.2MB. Free memory was 119.3MB in the beginning and 97.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 12:23:38,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.56ms. Allocated memory is still 176.2MB. Free memory was 97.0MB in the beginning and 94.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:23:38,231 INFO L158 Benchmark]: Boogie Preprocessor took 78.43ms. Allocated memory is still 176.2MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:23:38,231 INFO L158 Benchmark]: RCFGBuilder took 484.57ms. Allocated memory is still 176.2MB. Free memory was 92.8MB in the beginning and 73.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-13 12:23:38,231 INFO L158 Benchmark]: TraceAbstraction took 4752.71ms. Allocated memory was 176.2MB in the beginning and 251.7MB in the end (delta: 75.5MB). Free memory was 72.5MB in the beginning and 89.9MB in the end (delta: -17.4MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2024-10-13 12:23:38,232 INFO L158 Benchmark]: Witness Printer took 102.78ms. Allocated memory is still 251.7MB. Free memory was 89.9MB in the beginning and 85.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 12:23:38,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 176.2MB. Free memory is still 140.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.37ms. Allocated memory is still 176.2MB. Free memory was 119.3MB in the beginning and 97.0MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.56ms. Allocated memory is still 176.2MB. Free memory was 97.0MB in the beginning and 94.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.43ms. Allocated memory is still 176.2MB. Free memory was 94.9MB in the beginning and 92.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 484.57ms. Allocated memory is still 176.2MB. Free memory was 92.8MB in the beginning and 73.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4752.71ms. Allocated memory was 176.2MB in the beginning and 251.7MB in the end (delta: 75.5MB). Free memory was 72.5MB in the beginning and 89.9MB in the end (delta: -17.4MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Witness Printer took 102.78ms. Allocated memory is still 251.7MB. Free memory was 89.9MB in the beginning and 85.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 773]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 346 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 97 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 816 IncrementalHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 49 mSDtfsCounter, 816 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=3, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 203 NumberOfCodeBlocks, 203 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 12:23:38,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE