./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-theta/wsc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 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-theta/wsc.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 cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:53:13,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:53:13,291 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:53:13,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:53:13,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:53:13,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:53:13,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:53:13,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:53:13,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:53:13,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:53:13,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:53:13,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:53:13,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:53:13,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:53:13,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:53:13,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:53:13,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:53:13,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:53:13,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:53:13,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:53:13,311 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:53:13,312 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:53:13,312 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:53:13,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:53:13,312 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:53:13,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:53:13,313 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:53:13,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:53:13,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:53:13,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:53:13,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:53:13,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:53:13,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:53:13,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:53:13,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:53:13,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:53:13,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:53:13,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:53:13,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:53:13,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:53:13,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:53:13,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:53:13,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 [2024-11-20 17:53:13,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:53:13,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:53:13,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:53:13,489 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:53:13,489 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:53:13,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/wsc.i [2024-11-20 17:53:14,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:53:15,049 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:53:15,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/wsc.i [2024-11-20 17:53:15,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8f670d3/4e04c78d7f694791adf6445931b6650b/FLAG14373e017 [2024-11-20 17:53:15,080 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8f670d3/4e04c78d7f694791adf6445931b6650b [2024-11-20 17:53:15,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:53:15,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:53:15,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:53:15,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:53:15,089 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:53:15,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ac72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15, skipping insertion in model container [2024-11-20 17:53:15,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:53:15,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:53:15,383 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:53:15,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:53:15,483 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:53:15,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15 WrapperNode [2024-11-20 17:53:15,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:53:15,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:53:15,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:53:15,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:53:15,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,556 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 124 [2024-11-20 17:53:15,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:53:15,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:53:15,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:53:15,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:53:15,570 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,574 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,597 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-20 17:53:15,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,605 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:53:15,619 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:53:15,619 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:53:15,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:53:15,619 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (1/1) ... [2024-11-20 17:53:15,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:53:15,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:53:15,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 17:53:15,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 17:53:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:53:15,691 INFO L130 BoogieDeclarations]: Found specification of procedure f0 [2024-11-20 17:53:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure f0 [2024-11-20 17:53:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-20 17:53:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-20 17:53:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-20 17:53:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-20 17:53:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure f3 [2024-11-20 17:53:15,692 INFO L138 BoogieDeclarations]: Found implementation of procedure f3 [2024-11-20 17:53:15,692 INFO L130 BoogieDeclarations]: Found specification of procedure f4 [2024-11-20 17:53:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure f4 [2024-11-20 17:53:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure f5 [2024-11-20 17:53:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure f5 [2024-11-20 17:53:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:53:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 17:53:15,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:53:15,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:53:15,694 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:53:15,792 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:53:15,794 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:53:15,989 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:53:15,989 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:53:16,105 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:53:16,105 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:53:16,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:53:16 BoogieIcfgContainer [2024-11-20 17:53:16,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:53:16,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:53:16,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:53:16,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:53:16,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:53:15" (1/3) ... [2024-11-20 17:53:16,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed2b8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:53:16, skipping insertion in model container [2024-11-20 17:53:16,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:53:15" (2/3) ... [2024-11-20 17:53:16,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed2b8c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:53:16, skipping insertion in model container [2024-11-20 17:53:16,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:53:16" (3/3) ... [2024-11-20 17:53:16,111 INFO L112 eAbstractionObserver]: Analyzing ICFG wsc.i [2024-11-20 17:53:16,124 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:53:16,124 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-20 17:53:16,124 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:53:16,177 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-20 17:53:16,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 55 transitions, 152 flow [2024-11-20 17:53:16,238 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2024-11-20 17:53:16,240 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 17:53:16,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 49 events. 1/49 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-20 17:53:16,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 55 transitions, 152 flow [2024-11-20 17:53:16,246 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 48 transitions, 132 flow [2024-11-20 17:53:16,255 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:53:16,260 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;@492ae154, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:53:16,261 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 17:53:16,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:53:16,277 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-20 17:53:16,277 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 17:53:16,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:16,278 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:16,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:16,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:16,283 INFO L85 PathProgramCache]: Analyzing trace with hash -304422274, now seen corresponding path program 1 times [2024-11-20 17:53:16,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:16,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589213939] [2024-11-20 17:53:16,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:16,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:16,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:16,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589213939] [2024-11-20 17:53:16,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589213939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:16,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:16,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:53:16,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213728039] [2024-11-20 17:53:16,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:16,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:16,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:16,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:16,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:16,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:16,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:16,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:16,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:16,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:17,654 INFO L124 PetriNetUnfolderBase]: 7314/10489 cut-off events. [2024-11-20 17:53:17,655 INFO L125 PetriNetUnfolderBase]: For 1083/1083 co-relation queries the response was YES. [2024-11-20 17:53:17,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21078 conditions, 10489 events. 7314/10489 cut-off events. For 1083/1083 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 63874 event pairs, 5496 based on Foata normal form. 26/10498 useless extension candidates. Maximal degree in co-relation 20723. Up to 9584 conditions per place. [2024-11-20 17:53:17,715 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 39 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2024-11-20 17:53:17,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 242 flow [2024-11-20 17:53:17,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:17,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-20 17:53:17,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-20 17:53:17,726 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 132 flow. Second operand 3 states and 108 transitions. [2024-11-20 17:53:17,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 242 flow [2024-11-20 17:53:17,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 55 transitions, 210 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-20 17:53:17,744 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 125 flow [2024-11-20 17:53:17,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2024-11-20 17:53:17,749 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -12 predicate places. [2024-11-20 17:53:17,751 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 125 flow [2024-11-20 17:53:17,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:17,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:17,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:17,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:53:17,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:17,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:17,753 INFO L85 PathProgramCache]: Analyzing trace with hash 221358234, now seen corresponding path program 2 times [2024-11-20 17:53:17,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:17,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643123881] [2024-11-20 17:53:17,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:17,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:17,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:17,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643123881] [2024-11-20 17:53:17,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643123881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:17,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:17,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:53:17,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763072454] [2024-11-20 17:53:17,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:17,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:17,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:17,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:17,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:17,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:17,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:17,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:18,674 INFO L124 PetriNetUnfolderBase]: 7944/11705 cut-off events. [2024-11-20 17:53:18,675 INFO L125 PetriNetUnfolderBase]: For 2885/2885 co-relation queries the response was YES. [2024-11-20 17:53:18,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25982 conditions, 11705 events. 7944/11705 cut-off events. For 2885/2885 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 77346 event pairs, 2796 based on Foata normal form. 1063/12397 useless extension candidates. Maximal degree in co-relation 9483. Up to 6511 conditions per place. [2024-11-20 17:53:18,741 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 52 selfloop transitions, 5 changer transitions 0/70 dead transitions. [2024-11-20 17:53:18,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 303 flow [2024-11-20 17:53:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:18,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-11-20 17:53:18,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7151515151515152 [2024-11-20 17:53:18,746 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 125 flow. Second operand 3 states and 118 transitions. [2024-11-20 17:53:18,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 303 flow [2024-11-20 17:53:18,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 70 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:53:18,749 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 164 flow [2024-11-20 17:53:18,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2024-11-20 17:53:18,750 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -9 predicate places. [2024-11-20 17:53:18,751 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 164 flow [2024-11-20 17:53:18,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:18,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:18,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:18,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:53:18,751 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:18,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:18,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1110663350, now seen corresponding path program 3 times [2024-11-20 17:53:18,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:18,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876760909] [2024-11-20 17:53:18,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:18,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:18,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876760909] [2024-11-20 17:53:18,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876760909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:18,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:18,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:53:18,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135766211] [2024-11-20 17:53:18,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:18,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:18,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:18,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:18,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:18,865 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:18,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:18,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:18,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:18,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:19,580 INFO L124 PetriNetUnfolderBase]: 9485/13618 cut-off events. [2024-11-20 17:53:19,581 INFO L125 PetriNetUnfolderBase]: For 8930/9062 co-relation queries the response was YES. [2024-11-20 17:53:19,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33807 conditions, 13618 events. 9485/13618 cut-off events. For 8930/9062 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 82403 event pairs, 5211 based on Foata normal form. 46/13526 useless extension candidates. Maximal degree in co-relation 10827. Up to 12751 conditions per place. [2024-11-20 17:53:19,640 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 42 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2024-11-20 17:53:19,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 289 flow [2024-11-20 17:53:19,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-20 17:53:19,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-20 17:53:19,642 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 164 flow. Second operand 3 states and 104 transitions. [2024-11-20 17:53:19,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 289 flow [2024-11-20 17:53:19,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 267 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-20 17:53:19,651 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 165 flow [2024-11-20 17:53:19,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2024-11-20 17:53:19,652 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -8 predicate places. [2024-11-20 17:53:19,652 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 165 flow [2024-11-20 17:53:19,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:19,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:19,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:19,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:53:19,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:19,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:19,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1806550334, now seen corresponding path program 4 times [2024-11-20 17:53:19,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:19,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756217874] [2024-11-20 17:53:19,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:19,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:19,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:19,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756217874] [2024-11-20 17:53:19,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756217874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:19,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:19,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:53:19,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308733159] [2024-11-20 17:53:19,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:19,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:19,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:19,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:19,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:19,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:19,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:19,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:19,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:19,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:21,015 INFO L124 PetriNetUnfolderBase]: 14887/21172 cut-off events. [2024-11-20 17:53:21,016 INFO L125 PetriNetUnfolderBase]: For 10151/10483 co-relation queries the response was YES. [2024-11-20 17:53:21,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51399 conditions, 21172 events. 14887/21172 cut-off events. For 10151/10483 co-relation queries the response was YES. Maximal size of possible extension queue 1161. Compared 138505 event pairs, 6686 based on Foata normal form. 832/21391 useless extension candidates. Maximal degree in co-relation 21714. Up to 11003 conditions per place. [2024-11-20 17:53:21,087 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 55 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-11-20 17:53:21,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 75 transitions, 354 flow [2024-11-20 17:53:21,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:21,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:21,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 114 transitions. [2024-11-20 17:53:21,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-20 17:53:21,089 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 165 flow. Second operand 3 states and 114 transitions. [2024-11-20 17:53:21,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 75 transitions, 354 flow [2024-11-20 17:53:21,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 75 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:53:21,091 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 174 flow [2024-11-20 17:53:21,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-11-20 17:53:21,092 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -6 predicate places. [2024-11-20 17:53:21,092 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 174 flow [2024-11-20 17:53:21,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:21,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:21,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:21,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:53:21,093 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:21,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:21,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2054009848, now seen corresponding path program 5 times [2024-11-20 17:53:21,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:21,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741889714] [2024-11-20 17:53:21,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:21,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:21,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:21,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741889714] [2024-11-20 17:53:21,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741889714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:21,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:21,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:53:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122611584] [2024-11-20 17:53:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:21,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:21,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:21,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:21,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:21,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:21,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:21,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:21,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:21,878 INFO L124 PetriNetUnfolderBase]: 8531/13515 cut-off events. [2024-11-20 17:53:21,879 INFO L125 PetriNetUnfolderBase]: For 7055/7293 co-relation queries the response was YES. [2024-11-20 17:53:21,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32304 conditions, 13515 events. 8531/13515 cut-off events. For 7055/7293 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 97082 event pairs, 4087 based on Foata normal form. 821/14109 useless extension candidates. Maximal degree in co-relation 13690. Up to 7292 conditions per place. [2024-11-20 17:53:21,919 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 49 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-11-20 17:53:21,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 68 transitions, 313 flow [2024-11-20 17:53:21,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:21,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-11-20 17:53:21,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-11-20 17:53:21,921 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 174 flow. Second operand 3 states and 113 transitions. [2024-11-20 17:53:21,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 68 transitions, 313 flow [2024-11-20 17:53:21,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 68 transitions, 311 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:53:21,929 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 162 flow [2024-11-20 17:53:21,929 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2024-11-20 17:53:21,930 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -5 predicate places. [2024-11-20 17:53:21,930 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 162 flow [2024-11-20 17:53:21,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:21,930 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:21,931 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:21,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:53:21,931 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:21,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash -135443610, now seen corresponding path program 6 times [2024-11-20 17:53:21,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:21,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877998301] [2024-11-20 17:53:21,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:21,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:21,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:21,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:21,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877998301] [2024-11-20 17:53:21,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877998301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:21,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:21,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:53:21,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002426554] [2024-11-20 17:53:21,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:21,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:21,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:21,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:21,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:21,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:21,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:21,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:21,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:21,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:22,851 INFO L124 PetriNetUnfolderBase]: 14019/20919 cut-off events. [2024-11-20 17:53:22,851 INFO L125 PetriNetUnfolderBase]: For 8368/8500 co-relation queries the response was YES. [2024-11-20 17:53:22,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50289 conditions, 20919 events. 14019/20919 cut-off events. For 8368/8500 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 145183 event pairs, 8335 based on Foata normal form. 696/21003 useless extension candidates. Maximal degree in co-relation 13544. Up to 12363 conditions per place. [2024-11-20 17:53:22,917 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 49 selfloop transitions, 2 changer transitions 4/69 dead transitions. [2024-11-20 17:53:22,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 69 transitions, 324 flow [2024-11-20 17:53:22,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:22,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-11-20 17:53:22,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2024-11-20 17:53:22,919 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 162 flow. Second operand 3 states and 112 transitions. [2024-11-20 17:53:22,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 69 transitions, 324 flow [2024-11-20 17:53:22,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 321 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:53:22,925 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 152 flow [2024-11-20 17:53:22,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-11-20 17:53:22,926 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2024-11-20 17:53:22,926 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 152 flow [2024-11-20 17:53:22,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:22,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:22,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:22,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:53:22,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:22,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1079390348, now seen corresponding path program 7 times [2024-11-20 17:53:22,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:22,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402558587] [2024-11-20 17:53:22,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:22,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:22,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:22,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:22,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402558587] [2024-11-20 17:53:22,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402558587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:22,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:22,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:53:22,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019239701] [2024-11-20 17:53:22,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:22,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:22,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:22,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:22,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:22,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:22,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:22,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:22,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:23,747 INFO L124 PetriNetUnfolderBase]: 10181/15226 cut-off events. [2024-11-20 17:53:23,747 INFO L125 PetriNetUnfolderBase]: For 5601/6014 co-relation queries the response was YES. [2024-11-20 17:53:23,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37116 conditions, 15226 events. 10181/15226 cut-off events. For 5601/6014 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 100020 event pairs, 5392 based on Foata normal form. 712/15375 useless extension candidates. Maximal degree in co-relation 20401. Up to 7291 conditions per place. [2024-11-20 17:53:23,803 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 39 selfloop transitions, 1 changer transitions 3/58 dead transitions. [2024-11-20 17:53:23,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 58 transitions, 273 flow [2024-11-20 17:53:23,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:23,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-20 17:53:23,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-20 17:53:23,806 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 152 flow. Second operand 3 states and 104 transitions. [2024-11-20 17:53:23,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 58 transitions, 273 flow [2024-11-20 17:53:23,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 267 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:53:23,810 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 151 flow [2024-11-20 17:53:23,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-11-20 17:53:23,811 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2024-11-20 17:53:23,811 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 151 flow [2024-11-20 17:53:23,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:23,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:23,812 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:23,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:53:23,812 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:23,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:23,812 INFO L85 PathProgramCache]: Analyzing trace with hash -223997236, now seen corresponding path program 8 times [2024-11-20 17:53:23,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:23,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832413455] [2024-11-20 17:53:23,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:23,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:23,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:23,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832413455] [2024-11-20 17:53:23,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832413455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:23,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:23,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:53:23,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424219262] [2024-11-20 17:53:23,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:23,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:23,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:23,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:23,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:23,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:23,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:23,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:23,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:23,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:24,803 INFO L124 PetriNetUnfolderBase]: 9649/15362 cut-off events. [2024-11-20 17:53:24,804 INFO L125 PetriNetUnfolderBase]: For 8289/8345 co-relation queries the response was YES. [2024-11-20 17:53:24,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38721 conditions, 15362 events. 9649/15362 cut-off events. For 8289/8345 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 109281 event pairs, 5646 based on Foata normal form. 25/15002 useless extension candidates. Maximal degree in co-relation 25116. Up to 13436 conditions per place. [2024-11-20 17:53:24,873 INFO L140 encePairwiseOnDemand]: 51/55 looper letters, 42 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-11-20 17:53:24,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 281 flow [2024-11-20 17:53:24,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:24,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-20 17:53:24,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6424242424242425 [2024-11-20 17:53:24,875 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 151 flow. Second operand 3 states and 106 transitions. [2024-11-20 17:53:24,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 281 flow [2024-11-20 17:53:24,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 59 transitions, 280 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:53:24,932 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 167 flow [2024-11-20 17:53:24,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2024-11-20 17:53:24,933 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -1 predicate places. [2024-11-20 17:53:24,933 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 167 flow [2024-11-20 17:53:24,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:24,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:53:24,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:53:24,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:53:24,934 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-20 17:53:24,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:53:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1397182554, now seen corresponding path program 9 times [2024-11-20 17:53:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:53:24,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914370685] [2024-11-20 17:53:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:53:24,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:53:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:53:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:53:24,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:53:24,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914370685] [2024-11-20 17:53:24,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914370685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:53:24,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:53:24,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:53:24,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719683132] [2024-11-20 17:53:24,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:53:24,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:53:24,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:53:24,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:53:24,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:53:24,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 55 [2024-11-20 17:53:24,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:24,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:53:24,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 55 [2024-11-20 17:53:24,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:53:25,794 INFO L124 PetriNetUnfolderBase]: 8708/13187 cut-off events. [2024-11-20 17:53:25,795 INFO L125 PetriNetUnfolderBase]: For 8084/8508 co-relation queries the response was YES. [2024-11-20 17:53:25,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34370 conditions, 13187 events. 8708/13187 cut-off events. For 8084/8508 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 86746 event pairs, 5484 based on Foata normal form. 516/13259 useless extension candidates. Maximal degree in co-relation 19538. Up to 7810 conditions per place. [2024-11-20 17:53:25,832 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-11-20 17:53:25,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 275 flow [2024-11-20 17:53:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:53:25,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:53:25,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-20 17:53:25,833 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6181818181818182 [2024-11-20 17:53:25,834 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 167 flow. Second operand 3 states and 102 transitions. [2024-11-20 17:53:25,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 275 flow [2024-11-20 17:53:25,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 270 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-20 17:53:25,838 INFO L231 Difference]: Finished difference. Result has 62 places, 0 transitions, 0 flow [2024-11-20 17:53:25,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=62, PETRI_TRANSITIONS=0} [2024-11-20 17:53:25,838 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2024-11-20 17:53:25,839 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 0 transitions, 0 flow [2024-11-20 17:53:25,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:53:25,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-20 17:53:25,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-20 17:53:25,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2024-11-20 17:53:25,841 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-20 17:53:25,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-11-20 17:53:25,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-11-20 17:53:25,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-20 17:53:25,842 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-20 17:53:25,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 17:53:25,842 INFO L407 BasicCegarLoop]: Path program histogram: [9] [2024-11-20 17:53:25,845 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 17:53:25,845 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 17:53:25,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:53:25 BasicIcfg [2024-11-20 17:53:25,849 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 17:53:25,849 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 17:53:25,849 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 17:53:25,849 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 17:53:25,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:53:16" (3/4) ... [2024-11-20 17:53:25,851 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 17:53:25,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f0 [2024-11-20 17:53:25,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-20 17:53:25,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-20 17:53:25,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f3 [2024-11-20 17:53:25,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f4 [2024-11-20 17:53:25,854 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f5 [2024-11-20 17:53:25,857 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2024-11-20 17:53:25,857 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-20 17:53:25,857 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-20 17:53:25,858 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-20 17:53:25,858 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-20 17:53:25,924 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 17:53:25,924 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 17:53:25,924 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 17:53:25,925 INFO L158 Benchmark]: Toolchain (without parser) took 10841.33ms. Allocated memory was 203.4MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 135.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-20 17:53:25,925 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:53:25,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.62ms. Allocated memory is still 203.4MB. Free memory was 135.1MB in the beginning and 171.0MB in the end (delta: -35.9MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-11-20 17:53:25,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.30ms. Allocated memory is still 203.4MB. Free memory was 171.0MB in the beginning and 169.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 17:53:25,926 INFO L158 Benchmark]: Boogie Preprocessor took 58.51ms. Allocated memory is still 203.4MB. Free memory was 169.2MB in the beginning and 165.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:53:25,926 INFO L158 Benchmark]: RCFGBuilder took 487.46ms. Allocated memory is still 203.4MB. Free memory was 165.9MB in the beginning and 128.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-20 17:53:25,926 INFO L158 Benchmark]: TraceAbstraction took 9741.53ms. Allocated memory was 203.4MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 128.2MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-20 17:53:25,926 INFO L158 Benchmark]: Witness Printer took 75.45ms. Allocated memory is still 3.7GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 17:53:25,928 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.62ms. Allocated memory is still 203.4MB. Free memory was 135.1MB in the beginning and 171.0MB in the end (delta: -35.9MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.30ms. Allocated memory is still 203.4MB. Free memory was 171.0MB in the beginning and 169.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.51ms. Allocated memory is still 203.4MB. Free memory was 169.2MB in the beginning and 165.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 487.46ms. Allocated memory is still 203.4MB. Free memory was 165.9MB in the beginning and 128.2MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9741.53ms. Allocated memory was 203.4MB in the beginning and 3.7GB in the end (delta: 3.4GB). Free memory was 128.2MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 75.45ms. Allocated memory is still 3.7GB. Free memory was 1.8GB in the beginning and 1.8GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 788]: 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 13 procedures, 89 locations, 8 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: 9.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 595 IncrementalHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 595 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 396 NumberOfCodeBlocks, 396 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 387 ConstructedInterpolants, 0 QuantifiedInterpolants, 541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2024-11-20 17:53:25,947 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