./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/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 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/safe027_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 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:04:57,947 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:04:58,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:04:58,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:04:58,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:04:58,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:04:58,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:04:58,055 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:04:58,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:04:58,056 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:04:58,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:04:58,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:04:58,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:04:58,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:04:58,061 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:04:58,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:04:58,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:04:58,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:04:58,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:04:58,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:04:58,063 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:04:58,063 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:04:58,064 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:04:58,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:04:58,067 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:04:58,068 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:04:58,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:04:58,068 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:04:58,068 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:04:58,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:04:58,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:04:58,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:04:58,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:04:58,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:04:58,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:04:58,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:04:58,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:04:58,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:04:58,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:04:58,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:04:58,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:04:58,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:04:58,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7912270168edfe57ed71790473a28594e3bc48002f5ead86961705c042bbf781 [2024-10-24 19:04:58,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:04:58,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:04:58,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:04:58,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:04:58,395 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:04:58,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:04:59,833 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:05:00,098 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:05:00,099 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:05:00,111 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786b67c43/8bfe7e460ad2416eb0534eb0429a896b/FLAG7546c18af [2024-10-24 19:05:00,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/786b67c43/8bfe7e460ad2416eb0534eb0429a896b [2024-10-24 19:05:00,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:05:00,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:05:00,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:05:00,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:05:00,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:05:00,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd3c68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00, skipping insertion in model container [2024-10-24 19:05:00,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:05:00,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:05:00,545 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:05:00,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:05:00,637 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:05:00,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00 WrapperNode [2024-10-24 19:05:00,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:05:00,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:05:00,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:05:00,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:05:00,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,688 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-10-24 19:05:00,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:05:00,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:05:00,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:05:00,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:05:00,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,719 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]. [2024-10-24 19:05:00,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:05:00,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:05:00,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:05:00,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:05:00,734 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (1/1) ... [2024-10-24 19:05:00,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:05:00,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:05:00,769 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) [2024-10-24 19:05:00,772 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 [2024-10-24 19:05:00,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:05:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:05:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:05:00,826 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:05:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:05:00,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:05:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:05:00,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:05:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 19:05:00,827 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 19:05:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:05:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:05:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:05:00,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:05:00,831 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:05:00,964 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:05:00,966 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:05:01,106 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:05:01,107 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:05:01,191 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:05:01,192 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:05:01,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:01 BoogieIcfgContainer [2024-10-24 19:05:01,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:05:01,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:05:01,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:05:01,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:05:01,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:05:00" (1/3) ... [2024-10-24 19:05:01,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db4d30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:05:01, skipping insertion in model container [2024-10-24 19:05:01,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:05:00" (2/3) ... [2024-10-24 19:05:01,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db4d30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:05:01, skipping insertion in model container [2024-10-24 19:05:01,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:01" (3/3) ... [2024-10-24 19:05:01,204 INFO L112 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:05:01,221 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:05:01,221 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:05:01,221 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:05:01,279 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:05:01,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2024-10-24 19:05:01,355 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-10-24 19:05:01,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:01,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-10-24 19:05:01,362 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2024-10-24 19:05:01,365 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2024-10-24 19:05:01,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:05:01,387 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;@5b6887d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:05:01,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:05:01,405 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:05:01,405 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-10-24 19:05:01,405 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:01,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:01,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:01,411 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:01,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:01,420 INFO L85 PathProgramCache]: Analyzing trace with hash -131066216, now seen corresponding path program 1 times [2024-10-24 19:05:01,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:01,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816941454] [2024-10-24 19:05:01,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:01,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:01,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:01,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816941454] [2024-10-24 19:05:01,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816941454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:01,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:01,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:05:01,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775255539] [2024-10-24 19:05:01,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:01,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:05:01,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:01,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:05:01,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:05:01,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 50 [2024-10-24 19:05:01,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-24 19:05:01,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:01,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 50 [2024-10-24 19:05:01,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:01,980 INFO L124 PetriNetUnfolderBase]: 211/497 cut-off events. [2024-10-24 19:05:01,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:01,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 497 events. 211/497 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3173 event pairs, 211 based on Foata normal form. 48/505 useless extension candidates. Maximal degree in co-relation 857. Up to 336 conditions per place. [2024-10-24 19:05:01,991 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 15 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-10-24 19:05:01,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 128 flow [2024-10-24 19:05:01,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:05:01,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:05:02,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-24 19:05:02,005 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2024-10-24 19:05:02,006 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 104 transitions. [2024-10-24 19:05:02,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 128 flow [2024-10-24 19:05:02,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:05:02,012 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2024-10-24 19:05:02,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-10-24 19:05:02,019 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2024-10-24 19:05:02,019 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2024-10-24 19:05:02,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-24 19:05:02,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:02,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:02,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:05:02,020 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:02,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:02,021 INFO L85 PathProgramCache]: Analyzing trace with hash -131065021, now seen corresponding path program 1 times [2024-10-24 19:05:02,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:02,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21642737] [2024-10-24 19:05:02,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:02,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:02,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:02,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:02,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21642737] [2024-10-24 19:05:02,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21642737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:02,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:02,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:05:02,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118426714] [2024-10-24 19:05:02,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:02,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:05:02,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:02,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:05:02,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:05:02,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 50 [2024-10-24 19:05:02,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-10-24 19:05:02,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:02,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 50 [2024-10-24 19:05:02,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:02,829 INFO L124 PetriNetUnfolderBase]: 1583/2667 cut-off events. [2024-10-24 19:05:02,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:05:02,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5057 conditions, 2667 events. 1583/2667 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 18449 event pairs, 377 based on Foata normal form. 0/2578 useless extension candidates. Maximal degree in co-relation 5051. Up to 1441 conditions per place. [2024-10-24 19:05:02,851 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 30 selfloop transitions, 3 changer transitions 38/89 dead transitions. [2024-10-24 19:05:02,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 89 transitions, 336 flow [2024-10-24 19:05:02,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:05:02,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:05:02,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 257 transitions. [2024-10-24 19:05:02,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6425 [2024-10-24 19:05:02,858 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 8 states and 257 transitions. [2024-10-24 19:05:02,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 89 transitions, 336 flow [2024-10-24 19:05:02,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 89 transitions, 335 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:05:02,860 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 122 flow [2024-10-24 19:05:02,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=122, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2024-10-24 19:05:02,862 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2024-10-24 19:05:02,863 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 122 flow [2024-10-24 19:05:02,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-10-24 19:05:02,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:02,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:02,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:05:02,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:02,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:02,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1937078814, now seen corresponding path program 1 times [2024-10-24 19:05:02,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:02,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599051880] [2024-10-24 19:05:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:02,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:03,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:03,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599051880] [2024-10-24 19:05:03,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599051880] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:03,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:03,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:05:03,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568400440] [2024-10-24 19:05:03,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:03,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:05:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:03,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:05:03,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:05:03,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 50 [2024-10-24 19:05:03,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 122 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-10-24 19:05:03,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:03,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 50 [2024-10-24 19:05:03,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:03,470 INFO L124 PetriNetUnfolderBase]: 1115/1925 cut-off events. [2024-10-24 19:05:03,470 INFO L125 PetriNetUnfolderBase]: For 1123/1123 co-relation queries the response was YES. [2024-10-24 19:05:03,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4553 conditions, 1925 events. 1115/1925 cut-off events. For 1123/1123 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 11905 event pairs, 479 based on Foata normal form. 48/1928 useless extension candidates. Maximal degree in co-relation 4541. Up to 1141 conditions per place. [2024-10-24 19:05:03,485 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 28 selfloop transitions, 3 changer transitions 25/74 dead transitions. [2024-10-24 19:05:03,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 74 transitions, 324 flow [2024-10-24 19:05:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:05:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:05:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-10-24 19:05:03,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6228571428571429 [2024-10-24 19:05:03,488 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 122 flow. Second operand 7 states and 218 transitions. [2024-10-24 19:05:03,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 74 transitions, 324 flow [2024-10-24 19:05:03,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 74 transitions, 307 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-24 19:05:03,495 INFO L231 Difference]: Finished difference. Result has 64 places, 41 transitions, 132 flow [2024-10-24 19:05:03,495 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=64, PETRI_TRANSITIONS=41} [2024-10-24 19:05:03,496 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 8 predicate places. [2024-10-24 19:05:03,496 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 41 transitions, 132 flow [2024-10-24 19:05:03,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-10-24 19:05:03,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:03,497 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:03,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:05:03,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:03,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash -449552254, now seen corresponding path program 1 times [2024-10-24 19:05:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:03,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129883642] [2024-10-24 19:05:03,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:03,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:03,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:03,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129883642] [2024-10-24 19:05:03,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129883642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:03,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:03,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:05:03,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265839134] [2024-10-24 19:05:03,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:03,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:05:03,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:03,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:05:03,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:05:03,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:05:03,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 41 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-24 19:05:03,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:03,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:05:03,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:04,299 INFO L124 PetriNetUnfolderBase]: 2085/3611 cut-off events. [2024-10-24 19:05:04,300 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2024-10-24 19:05:04,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8543 conditions, 3611 events. 2085/3611 cut-off events. For 2683/2683 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 24948 event pairs, 214 based on Foata normal form. 90/3634 useless extension candidates. Maximal degree in co-relation 8527. Up to 1577 conditions per place. [2024-10-24 19:05:04,325 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 55 selfloop transitions, 13 changer transitions 58/143 dead transitions. [2024-10-24 19:05:04,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 143 transitions, 730 flow [2024-10-24 19:05:04,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 19:05:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 19:05:04,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 414 transitions. [2024-10-24 19:05:04,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6369230769230769 [2024-10-24 19:05:04,328 INFO L175 Difference]: Start difference. First operand has 64 places, 41 transitions, 132 flow. Second operand 13 states and 414 transitions. [2024-10-24 19:05:04,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 143 transitions, 730 flow [2024-10-24 19:05:04,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 143 transitions, 684 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-10-24 19:05:04,346 INFO L231 Difference]: Finished difference. Result has 77 places, 51 transitions, 261 flow [2024-10-24 19:05:04,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=261, PETRI_PLACES=77, PETRI_TRANSITIONS=51} [2024-10-24 19:05:04,347 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-10-24 19:05:04,347 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 51 transitions, 261 flow [2024-10-24 19:05:04,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-24 19:05:04,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:04,347 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] [2024-10-24 19:05:04,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:05:04,348 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:04,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:04,348 INFO L85 PathProgramCache]: Analyzing trace with hash -552789683, now seen corresponding path program 1 times [2024-10-24 19:05:04,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:04,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825365468] [2024-10-24 19:05:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:04,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:04,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:04,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825365468] [2024-10-24 19:05:04,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825365468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:04,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:04,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:05:04,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510152122] [2024-10-24 19:05:04,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:04,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:05:04,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:04,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:05:04,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:05:04,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:05:04,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 51 transitions, 261 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-24 19:05:04,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:04,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:05:04,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:05,072 INFO L124 PetriNetUnfolderBase]: 2172/3740 cut-off events. [2024-10-24 19:05:05,080 INFO L125 PetriNetUnfolderBase]: For 15051/15053 co-relation queries the response was YES. [2024-10-24 19:05:05,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13612 conditions, 3740 events. 2172/3740 cut-off events. For 15051/15053 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 25835 event pairs, 490 based on Foata normal form. 66/3707 useless extension candidates. Maximal degree in co-relation 13589. Up to 1141 conditions per place. [2024-10-24 19:05:05,110 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 38 selfloop transitions, 5 changer transitions 46/106 dead transitions. [2024-10-24 19:05:05,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 106 transitions, 849 flow [2024-10-24 19:05:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:05:05,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:05:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2024-10-24 19:05:05,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.64 [2024-10-24 19:05:05,113 INFO L175 Difference]: Start difference. First operand has 77 places, 51 transitions, 261 flow. Second operand 8 states and 256 transitions. [2024-10-24 19:05:05,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 106 transitions, 849 flow [2024-10-24 19:05:05,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 106 transitions, 724 flow, removed 58 selfloop flow, removed 7 redundant places. [2024-10-24 19:05:05,131 INFO L231 Difference]: Finished difference. Result has 75 places, 43 transitions, 201 flow [2024-10-24 19:05:05,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=201, PETRI_PLACES=75, PETRI_TRANSITIONS=43} [2024-10-24 19:05:05,132 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2024-10-24 19:05:05,132 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 43 transitions, 201 flow [2024-10-24 19:05:05,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-24 19:05:05,132 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:05,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:05,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:05:05,133 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:05,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:05,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1927919269, now seen corresponding path program 1 times [2024-10-24 19:05:05,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:05,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414729541] [2024-10-24 19:05:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:05,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:05,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:05,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414729541] [2024-10-24 19:05:05,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414729541] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:05,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:05,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:05:05,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205268965] [2024-10-24 19:05:05,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:05,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:05:05,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:05,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:05:05,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:05:05,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 50 [2024-10-24 19:05:05,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 43 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2024-10-24 19:05:05,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:05,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 50 [2024-10-24 19:05:05,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:05,558 INFO L124 PetriNetUnfolderBase]: 736/1455 cut-off events. [2024-10-24 19:05:05,558 INFO L125 PetriNetUnfolderBase]: For 4896/5097 co-relation queries the response was YES. [2024-10-24 19:05:05,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4749 conditions, 1455 events. 736/1455 cut-off events. For 4896/5097 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9598 event pairs, 400 based on Foata normal form. 48/1384 useless extension candidates. Maximal degree in co-relation 4725. Up to 700 conditions per place. [2024-10-24 19:05:05,574 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 27 selfloop transitions, 4 changer transitions 19/73 dead transitions. [2024-10-24 19:05:05,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 73 transitions, 423 flow [2024-10-24 19:05:05,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:05:05,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:05:05,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2024-10-24 19:05:05,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6628571428571428 [2024-10-24 19:05:05,577 INFO L175 Difference]: Start difference. First operand has 75 places, 43 transitions, 201 flow. Second operand 7 states and 232 transitions. [2024-10-24 19:05:05,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 73 transitions, 423 flow [2024-10-24 19:05:05,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 73 transitions, 358 flow, removed 23 selfloop flow, removed 12 redundant places. [2024-10-24 19:05:05,588 INFO L231 Difference]: Finished difference. Result has 70 places, 43 transitions, 182 flow [2024-10-24 19:05:05,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=70, PETRI_TRANSITIONS=43} [2024-10-24 19:05:05,590 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2024-10-24 19:05:05,591 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 43 transitions, 182 flow [2024-10-24 19:05:05,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2024-10-24 19:05:05,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:05,591 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:05,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:05:05,592 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:05,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:05,592 INFO L85 PathProgramCache]: Analyzing trace with hash -231409146, now seen corresponding path program 1 times [2024-10-24 19:05:05,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:05,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708234164] [2024-10-24 19:05:05,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:05,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:05,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:05,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708234164] [2024-10-24 19:05:05,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708234164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:05,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:05,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:05:05,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321130711] [2024-10-24 19:05:05,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:05,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:05:05,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:05,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:05:05,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:05:05,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:05:05,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 43 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-24 19:05:05,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:05,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:05:05,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:06,170 INFO L124 PetriNetUnfolderBase]: 1782/3130 cut-off events. [2024-10-24 19:05:06,170 INFO L125 PetriNetUnfolderBase]: For 6414/6438 co-relation queries the response was YES. [2024-10-24 19:05:06,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9343 conditions, 3130 events. 1782/3130 cut-off events. For 6414/6438 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 21203 event pairs, 473 based on Foata normal form. 54/3158 useless extension candidates. Maximal degree in co-relation 9324. Up to 892 conditions per place. [2024-10-24 19:05:06,198 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 32 selfloop transitions, 5 changer transitions 37/92 dead transitions. [2024-10-24 19:05:06,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 92 transitions, 595 flow [2024-10-24 19:05:06,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:05:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:05:06,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 246 transitions. [2024-10-24 19:05:06,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.615 [2024-10-24 19:05:06,201 INFO L175 Difference]: Start difference. First operand has 70 places, 43 transitions, 182 flow. Second operand 8 states and 246 transitions. [2024-10-24 19:05:06,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 92 transitions, 595 flow [2024-10-24 19:05:06,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 92 transitions, 565 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-24 19:05:06,213 INFO L231 Difference]: Finished difference. Result has 73 places, 43 transitions, 194 flow [2024-10-24 19:05:06,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=194, PETRI_PLACES=73, PETRI_TRANSITIONS=43} [2024-10-24 19:05:06,214 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-24 19:05:06,214 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 43 transitions, 194 flow [2024-10-24 19:05:06,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-24 19:05:06,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:06,215 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] [2024-10-24 19:05:06,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:05:06,215 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:06,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash -972765725, now seen corresponding path program 1 times [2024-10-24 19:05:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273083994] [2024-10-24 19:05:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:06,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:06,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:06,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273083994] [2024-10-24 19:05:06,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273083994] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:06,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:06,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:05:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589601238] [2024-10-24 19:05:06,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:06,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:05:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:05:06,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:05:06,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:05:06,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 43 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:05:06,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:06,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:05:06,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:06,673 INFO L124 PetriNetUnfolderBase]: 2390/4026 cut-off events. [2024-10-24 19:05:06,674 INFO L125 PetriNetUnfolderBase]: For 5615/6200 co-relation queries the response was YES. [2024-10-24 19:05:06,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9967 conditions, 4026 events. 2390/4026 cut-off events. For 5615/6200 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 26724 event pairs, 660 based on Foata normal form. 141/3973 useless extension candidates. Maximal degree in co-relation 9946. Up to 1939 conditions per place. [2024-10-24 19:05:06,708 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 33 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2024-10-24 19:05:06,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 61 transitions, 312 flow [2024-10-24 19:05:06,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:05:06,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:05:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-10-24 19:05:06,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.685 [2024-10-24 19:05:06,709 INFO L175 Difference]: Start difference. First operand has 73 places, 43 transitions, 194 flow. Second operand 4 states and 137 transitions. [2024-10-24 19:05:06,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 61 transitions, 312 flow [2024-10-24 19:05:06,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 288 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-10-24 19:05:06,726 INFO L231 Difference]: Finished difference. Result has 66 places, 48 transitions, 216 flow [2024-10-24 19:05:06,727 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=66, PETRI_TRANSITIONS=48} [2024-10-24 19:05:06,727 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 10 predicate places. [2024-10-24 19:05:06,727 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 216 flow [2024-10-24 19:05:06,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:05:06,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:06,728 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] [2024-10-24 19:05:06,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:05:06,728 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:06,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:06,729 INFO L85 PathProgramCache]: Analyzing trace with hash 967551382, now seen corresponding path program 1 times [2024-10-24 19:05:06,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:06,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822231177] [2024-10-24 19:05:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:06,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:06,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:06,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:06,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822231177] [2024-10-24 19:05:06,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822231177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:06,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:05:06,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351517067] [2024-10-24 19:05:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:06,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:05:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:05:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:05:06,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:05:06,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 216 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-24 19:05:06,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:06,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:05:06,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:07,184 INFO L124 PetriNetUnfolderBase]: 2288/3882 cut-off events. [2024-10-24 19:05:07,185 INFO L125 PetriNetUnfolderBase]: For 3345/5114 co-relation queries the response was YES. [2024-10-24 19:05:07,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10317 conditions, 3882 events. 2288/3882 cut-off events. For 3345/5114 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 24872 event pairs, 362 based on Foata normal form. 156/3858 useless extension candidates. Maximal degree in co-relation 10300. Up to 1597 conditions per place. [2024-10-24 19:05:07,219 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 41 selfloop transitions, 10 changer transitions 0/73 dead transitions. [2024-10-24 19:05:07,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 73 transitions, 393 flow [2024-10-24 19:05:07,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:05:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:05:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-10-24 19:05:07,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.692 [2024-10-24 19:05:07,221 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 216 flow. Second operand 5 states and 173 transitions. [2024-10-24 19:05:07,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 73 transitions, 393 flow [2024-10-24 19:05:07,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 390 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:05:07,225 INFO L231 Difference]: Finished difference. Result has 71 places, 53 transitions, 281 flow [2024-10-24 19:05:07,226 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=281, PETRI_PLACES=71, PETRI_TRANSITIONS=53} [2024-10-24 19:05:07,227 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 15 predicate places. [2024-10-24 19:05:07,227 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 53 transitions, 281 flow [2024-10-24 19:05:07,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) [2024-10-24 19:05:07,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:07,227 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] [2024-10-24 19:05:07,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:05:07,228 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:07,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:07,228 INFO L85 PathProgramCache]: Analyzing trace with hash -457209863, now seen corresponding path program 1 times [2024-10-24 19:05:07,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:07,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218677433] [2024-10-24 19:05:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:07,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:07,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:07,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218677433] [2024-10-24 19:05:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218677433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:07,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:07,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:05:07,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592287269] [2024-10-24 19:05:07,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:07,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:05:07,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:07,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:05:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:05:07,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:05:07,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 53 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2024-10-24 19:05:07,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:07,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:05:07,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:07,662 INFO L124 PetriNetUnfolderBase]: 1864/3146 cut-off events. [2024-10-24 19:05:07,662 INFO L125 PetriNetUnfolderBase]: For 4568/7582 co-relation queries the response was YES. [2024-10-24 19:05:07,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9550 conditions, 3146 events. 1864/3146 cut-off events. For 4568/7582 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 18698 event pairs, 124 based on Foata normal form. 154/3151 useless extension candidates. Maximal degree in co-relation 9530. Up to 1232 conditions per place. [2024-10-24 19:05:07,687 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 47 selfloop transitions, 14 changer transitions 0/83 dead transitions. [2024-10-24 19:05:07,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 83 transitions, 506 flow [2024-10-24 19:05:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:05:07,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:05:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 207 transitions. [2024-10-24 19:05:07,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.69 [2024-10-24 19:05:07,689 INFO L175 Difference]: Start difference. First operand has 71 places, 53 transitions, 281 flow. Second operand 6 states and 207 transitions. [2024-10-24 19:05:07,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 83 transitions, 506 flow [2024-10-24 19:05:07,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 83 transitions, 490 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-24 19:05:07,696 INFO L231 Difference]: Finished difference. Result has 76 places, 58 transitions, 351 flow [2024-10-24 19:05:07,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=76, PETRI_TRANSITIONS=58} [2024-10-24 19:05:07,698 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 20 predicate places. [2024-10-24 19:05:07,698 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 58 transitions, 351 flow [2024-10-24 19:05:07,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2024-10-24 19:05:07,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:07,699 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, 1, 1, 1] [2024-10-24 19:05:07,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:05:07,699 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:07,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:07,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1742160033, now seen corresponding path program 1 times [2024-10-24 19:05:07,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:07,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842858651] [2024-10-24 19:05:07,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:07,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:07,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:07,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842858651] [2024-10-24 19:05:07,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842858651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:07,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:07,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:05:07,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186425270] [2024-10-24 19:05:07,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:07,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:05:07,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:05:07,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:05:07,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-10-24 19:05:07,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 58 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2024-10-24 19:05:07,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:07,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-10-24 19:05:07,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:08,254 INFO L124 PetriNetUnfolderBase]: 1942/3831 cut-off events. [2024-10-24 19:05:08,254 INFO L125 PetriNetUnfolderBase]: For 8373/9543 co-relation queries the response was YES. [2024-10-24 19:05:08,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11969 conditions, 3831 events. 1942/3831 cut-off events. For 8373/9543 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 28913 event pairs, 567 based on Foata normal form. 102/3517 useless extension candidates. Maximal degree in co-relation 11947. Up to 1313 conditions per place. [2024-10-24 19:05:08,289 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 29 selfloop transitions, 2 changer transitions 10/80 dead transitions. [2024-10-24 19:05:08,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 80 transitions, 513 flow [2024-10-24 19:05:08,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:05:08,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:05:08,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 192 transitions. [2024-10-24 19:05:08,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.64 [2024-10-24 19:05:08,292 INFO L175 Difference]: Start difference. First operand has 76 places, 58 transitions, 351 flow. Second operand 6 states and 192 transitions. [2024-10-24 19:05:08,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 80 transitions, 513 flow [2024-10-24 19:05:08,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 80 transitions, 482 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-24 19:05:08,305 INFO L231 Difference]: Finished difference. Result has 82 places, 59 transitions, 345 flow [2024-10-24 19:05:08,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=345, PETRI_PLACES=82, PETRI_TRANSITIONS=59} [2024-10-24 19:05:08,306 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 26 predicate places. [2024-10-24 19:05:08,306 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 59 transitions, 345 flow [2024-10-24 19:05:08,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2024-10-24 19:05:08,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:08,310 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, 1, 1, 1] [2024-10-24 19:05:08,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:05:08,310 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:08,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1619303185, now seen corresponding path program 2 times [2024-10-24 19:05:08,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:08,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105930906] [2024-10-24 19:05:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:08,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:08,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:08,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105930906] [2024-10-24 19:05:08,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105930906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:08,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:08,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:05:08,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722944150] [2024-10-24 19:05:08,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:08,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:05:08,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:08,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:05:08,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:05:08,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:05:08,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 59 transitions, 345 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-10-24 19:05:08,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:08,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:05:08,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:08,806 INFO L124 PetriNetUnfolderBase]: 2270/3598 cut-off events. [2024-10-24 19:05:08,807 INFO L125 PetriNetUnfolderBase]: For 6787/9790 co-relation queries the response was YES. [2024-10-24 19:05:08,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11447 conditions, 3598 events. 2270/3598 cut-off events. For 6787/9790 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 21322 event pairs, 86 based on Foata normal form. 159/3600 useless extension candidates. Maximal degree in co-relation 11422. Up to 1480 conditions per place. [2024-10-24 19:05:08,832 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 45 selfloop transitions, 18 changer transitions 0/86 dead transitions. [2024-10-24 19:05:08,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 86 transitions, 537 flow [2024-10-24 19:05:08,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:05:08,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:05:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2024-10-24 19:05:08,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6657142857142857 [2024-10-24 19:05:08,834 INFO L175 Difference]: Start difference. First operand has 82 places, 59 transitions, 345 flow. Second operand 7 states and 233 transitions. [2024-10-24 19:05:08,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 86 transitions, 537 flow [2024-10-24 19:05:08,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 86 transitions, 511 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-10-24 19:05:08,847 INFO L231 Difference]: Finished difference. Result has 83 places, 60 transitions, 382 flow [2024-10-24 19:05:08,848 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=382, PETRI_PLACES=83, PETRI_TRANSITIONS=60} [2024-10-24 19:05:08,848 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 27 predicate places. [2024-10-24 19:05:08,848 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 60 transitions, 382 flow [2024-10-24 19:05:08,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-10-24 19:05:08,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:05:08,849 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, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:08,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 19:05:08,849 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:05:08,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:05:08,849 INFO L85 PathProgramCache]: Analyzing trace with hash -2063926406, now seen corresponding path program 1 times [2024-10-24 19:05:08,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:05:08,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235515710] [2024-10-24 19:05:08,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:05:08,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:05:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:05:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:05:08,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:05:08,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235515710] [2024-10-24 19:05:08,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235515710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:05:08,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:05:08,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:05:08,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331953278] [2024-10-24 19:05:08,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:05:08,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:05:08,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:05:08,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:05:08,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:05:09,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:05:09,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 60 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-10-24 19:05:09,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:05:09,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:05:09,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:05:09,480 INFO L124 PetriNetUnfolderBase]: 2347/4256 cut-off events. [2024-10-24 19:05:09,480 INFO L125 PetriNetUnfolderBase]: For 12523/13493 co-relation queries the response was YES. [2024-10-24 19:05:09,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14082 conditions, 4256 events. 2347/4256 cut-off events. For 12523/13493 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 32654 event pairs, 685 based on Foata normal form. 59/3788 useless extension candidates. Maximal degree in co-relation 14058. Up to 1602 conditions per place. [2024-10-24 19:05:09,575 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2024-10-24 19:05:09,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 585 flow [2024-10-24 19:05:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:05:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:05:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2024-10-24 19:05:09,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2024-10-24 19:05:09,577 INFO L175 Difference]: Start difference. First operand has 83 places, 60 transitions, 382 flow. Second operand 7 states and 207 transitions. [2024-10-24 19:05:09,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 585 flow [2024-10-24 19:05:09,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 85 transitions, 514 flow, removed 24 selfloop flow, removed 6 redundant places. [2024-10-24 19:05:09,623 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2024-10-24 19:05:09,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2024-10-24 19:05:09,625 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 24 predicate places. [2024-10-24 19:05:09,625 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2024-10-24 19:05:09,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-10-24 19:05:09,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-10-24 19:05:09,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-10-24 19:05:09,628 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-10-24 19:05:09,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-24 19:05:09,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-24 19:05:09,629 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-24 19:05:09,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 19:05:09,630 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:05:09,633 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:05:09,634 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:05:09,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:05:09 BasicIcfg [2024-10-24 19:05:09,640 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:05:09,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:05:09,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:05:09,641 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:05:09,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:05:01" (3/4) ... [2024-10-24 19:05:09,643 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:05:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 19:05:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 19:05:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 19:05:09,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-24 19:05:09,651 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-10-24 19:05:09,652 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-24 19:05:09,653 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 19:05:09,653 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 19:05:09,739 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:05:09,740 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:05:09,740 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:05:09,741 INFO L158 Benchmark]: Toolchain (without parser) took 9612.40ms. Allocated memory was 174.1MB in the beginning and 408.9MB in the end (delta: 234.9MB). Free memory was 146.2MB in the beginning and 285.8MB in the end (delta: -139.6MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. [2024-10-24 19:05:09,741 INFO L158 Benchmark]: CDTParser took 3.87ms. Allocated memory is still 117.4MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:05:09,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.95ms. Allocated memory is still 174.1MB. Free memory was 145.9MB in the beginning and 127.4MB in the end (delta: 18.6MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-10-24 19:05:09,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.90ms. Allocated memory is still 174.1MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:05:09,742 INFO L158 Benchmark]: Boogie Preprocessor took 42.44ms. Allocated memory is still 174.1MB. Free memory was 124.2MB in the beginning and 122.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:05:09,742 INFO L158 Benchmark]: RCFGBuilder took 459.61ms. Allocated memory is still 174.1MB. Free memory was 122.1MB in the beginning and 101.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 19:05:09,742 INFO L158 Benchmark]: TraceAbstraction took 8443.83ms. Allocated memory was 174.1MB in the beginning and 408.9MB in the end (delta: 234.9MB). Free memory was 100.1MB in the beginning and 290.0MB in the end (delta: -189.9MB). Peak memory consumption was 223.3MB. Max. memory is 16.1GB. [2024-10-24 19:05:09,743 INFO L158 Benchmark]: Witness Printer took 99.80ms. Allocated memory is still 408.9MB. Free memory was 290.0MB in the beginning and 285.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:05:09,744 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.87ms. Allocated memory is still 117.4MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.95ms. Allocated memory is still 174.1MB. Free memory was 145.9MB in the beginning and 127.4MB in the end (delta: 18.6MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.90ms. Allocated memory is still 174.1MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.44ms. Allocated memory is still 174.1MB. Free memory was 124.2MB in the beginning and 122.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.61ms. Allocated memory is still 174.1MB. Free memory was 122.1MB in the beginning and 101.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8443.83ms. Allocated memory was 174.1MB in the beginning and 408.9MB in the end (delta: 234.9MB). Free memory was 100.1MB in the beginning and 290.0MB in the end (delta: -189.9MB). Peak memory consumption was 223.3MB. Max. memory is 16.1GB. * Witness Printer took 99.80ms. Allocated memory is still 408.9MB. Free memory was 290.0MB in the beginning and 285.8MB 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: 788]: 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 9 procedures, 79 locations, 6 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: 8.3s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 672 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 624 mSDsluCounter, 289 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 223 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1343 IncrementalHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 66 mSDtfsCounter, 1343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=12, InterpolantAutomatonStates: 89, 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, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 303 ConstructedInterpolants, 0 QuantifiedInterpolants, 1211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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! [2024-10-24 19:05:09,775 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