./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:11:46,237 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:11:46,286 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:11:46,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:11:46,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:11:46,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:11:46,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:11:46,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:11:46,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:11:46,333 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:11:46,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:11:46,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:11:46,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:11:46,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:11:46,335 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:11:46,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:11:46,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:11:46,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:11:46,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:11:46,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:11:46,336 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:11:46,337 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:11:46,337 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:11:46,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:11:46,337 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:11:46,337 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:11:46,338 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:11:46,338 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:11:46,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:11:46,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:11:46,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:11:46,339 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:11:46,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:11:46,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:11:46,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:11:46,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:11:46,340 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:11:46,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:11:46,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:11:46,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:11:46,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:11:46,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:11:46,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2024-11-12 16:11:46,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:11:46,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:11:46,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:11:46,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:11:46,572 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:11:46,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-12 16:11:47,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:11:48,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:11:48,077 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-12 16:11:48,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/641dcb6c1/d28bed816ff24f85903c1fcfbd5b02d2/FLAG0502de43f [2024-11-12 16:11:48,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/641dcb6c1/d28bed816ff24f85903c1fcfbd5b02d2 [2024-11-12 16:11:48,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:11:48,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:11:48,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:11:48,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:11:48,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:11:48,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2af70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48, skipping insertion in model container [2024-11-12 16:11:48,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,159 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:11:48,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:11:48,445 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:11:48,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:11:48,523 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:11:48,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48 WrapperNode [2024-11-12 16:11:48,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:11:48,524 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:11:48,524 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:11:48,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:11:48,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,541 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,557 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-12 16:11:48,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:11:48,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:11:48,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:11:48,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:11:48,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,587 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:11:48,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,595 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:11:48,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:11:48,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:11:48,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:11:48,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (1/1) ... [2024-11-12 16:11:48,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:11:48,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:11:48,633 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) [2024-11-12 16:11:48,635 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 [2024-11-12 16:11:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:11:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:11:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:11:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:11:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:11:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:11:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 16:11:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 16:11:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-12 16:11:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-12 16:11:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:11:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:11:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:11:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:11:48,674 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:11:48,771 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:11:48,773 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:11:48,890 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:11:48,890 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:11:48,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:11:48,983 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:11:48,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:11:48 BoogieIcfgContainer [2024-11-12 16:11:48,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:11:48,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:11:48,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:11:48,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:11:48,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:11:48" (1/3) ... [2024-11-12 16:11:48,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f46085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:11:48, skipping insertion in model container [2024-11-12 16:11:48,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:11:48" (2/3) ... [2024-11-12 16:11:48,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f46085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:11:48, skipping insertion in model container [2024-11-12 16:11:48,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:11:48" (3/3) ... [2024-11-12 16:11:48,992 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-12 16:11:49,005 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:11:49,005 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 16:11:49,005 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:11:49,050 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:11:49,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2024-11-12 16:11:49,099 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-11-12 16:11:49,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:49,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-12 16:11:49,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2024-11-12 16:11:49,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2024-11-12 16:11:49,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:11:49,123 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;@e6d994d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:11:49,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-12 16:11:49,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:11:49,135 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-11-12 16:11:49,135 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:49,135 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:49,136 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:49,136 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:49,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:49,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1736773628, now seen corresponding path program 1 times [2024-11-12 16:11:49,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:49,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905397558] [2024-11-12 16:11:49,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:49,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:49,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:49,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:49,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905397558] [2024-11-12 16:11:49,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905397558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:49,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:49,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:11:49,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834283783] [2024-11-12 16:11:49,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:49,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:11:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:49,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:11:49,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:11:49,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 50 [2024-11-12 16:11:49,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:49,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:49,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 50 [2024-11-12 16:11:49,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:49,613 INFO L124 PetriNetUnfolderBase]: 211/497 cut-off events. [2024-11-12 16:11:49,613 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:49,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 497 events. 211/497 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3110 event pairs, 211 based on Foata normal form. 48/501 useless extension candidates. Maximal degree in co-relation 857. Up to 336 conditions per place. [2024-11-12 16:11:49,620 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 15 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-11-12 16:11:49,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 128 flow [2024-11-12 16:11:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:11:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:11:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-12 16:11:49,632 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2024-11-12 16:11:49,634 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 104 transitions. [2024-11-12 16:11:49,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 128 flow [2024-11-12 16:11:49,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:11:49,640 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2024-11-12 16:11:49,641 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-11-12 16:11:49,645 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2024-11-12 16:11:49,646 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2024-11-12 16:11:49,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:49,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:49,647 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:49,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:11:49,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:49,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:49,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1736774980, now seen corresponding path program 1 times [2024-11-12 16:11:49,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:49,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805325596] [2024-11-12 16:11:49,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:49,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:49,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:49,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:49,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805325596] [2024-11-12 16:11:49,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805325596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:49,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:49,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:11:49,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027545033] [2024-11-12 16:11:49,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:49,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:11:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:49,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:11:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:11:49,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-11-12 16:11:49,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-12 16:11:49,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:49,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-11-12 16:11:49,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:50,591 INFO L124 PetriNetUnfolderBase]: 3489/5971 cut-off events. [2024-11-12 16:11:50,591 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:11:50,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11083 conditions, 5971 events. 3489/5971 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 47564 event pairs, 992 based on Foata normal form. 0/5764 useless extension candidates. Maximal degree in co-relation 11077. Up to 2191 conditions per place. [2024-11-12 16:11:50,630 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 34 selfloop transitions, 6 changer transitions 57/114 dead transitions. [2024-11-12 16:11:50,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 114 transitions, 438 flow [2024-11-12 16:11:50,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:11:50,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:11:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 297 transitions. [2024-11-12 16:11:50,632 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-11-12 16:11:50,632 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 9 states and 297 transitions. [2024-11-12 16:11:50,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 114 transitions, 438 flow [2024-11-12 16:11:50,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 114 transitions, 437 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:11:50,635 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 153 flow [2024-11-12 16:11:50,635 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=153, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2024-11-12 16:11:50,636 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 8 predicate places. [2024-11-12 16:11:50,636 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 153 flow [2024-11-12 16:11:50,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-11-12 16:11:50,636 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:50,636 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:50,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:11:50,637 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:50,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:50,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1270427387, now seen corresponding path program 1 times [2024-11-12 16:11:50,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:50,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443794382] [2024-11-12 16:11:50,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:50,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:50,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:50,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443794382] [2024-11-12 16:11:50,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443794382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:50,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:50,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:11:50,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167291913] [2024-11-12 16:11:50,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:50,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:11:50,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:11:50,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:11:50,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-11-12 16:11:50,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:50,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:50,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-11-12 16:11:50,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:51,369 INFO L124 PetriNetUnfolderBase]: 2463/4329 cut-off events. [2024-11-12 16:11:51,370 INFO L125 PetriNetUnfolderBase]: For 5145/5145 co-relation queries the response was YES. [2024-11-12 16:11:51,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12034 conditions, 4329 events. 2463/4329 cut-off events. For 5145/5145 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 33501 event pairs, 393 based on Foata normal form. 120/4402 useless extension candidates. Maximal degree in co-relation 12021. Up to 1685 conditions per place. [2024-11-12 16:11:51,401 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 41 selfloop transitions, 7 changer transitions 48/113 dead transitions. [2024-11-12 16:11:51,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 113 transitions, 673 flow [2024-11-12 16:11:51,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:11:51,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:11:51,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2024-11-12 16:11:51,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.632 [2024-11-12 16:11:51,405 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 153 flow. Second operand 10 states and 316 transitions. [2024-11-12 16:11:51,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 113 transitions, 673 flow [2024-11-12 16:11:51,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 113 transitions, 607 flow, removed 25 selfloop flow, removed 4 redundant places. [2024-11-12 16:11:51,443 INFO L231 Difference]: Finished difference. Result has 70 places, 45 transitions, 192 flow [2024-11-12 16:11:51,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=192, PETRI_PLACES=70, PETRI_TRANSITIONS=45} [2024-11-12 16:11:51,444 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2024-11-12 16:11:51,444 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 45 transitions, 192 flow [2024-11-12 16:11:51,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:51,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:51,446 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:51,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:11:51,446 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:51,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:51,447 INFO L85 PathProgramCache]: Analyzing trace with hash -2124321323, now seen corresponding path program 1 times [2024-11-12 16:11:51,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:51,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187040547] [2024-11-12 16:11:51,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:51,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:51,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:51,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:51,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187040547] [2024-11-12 16:11:51,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187040547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:51,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:51,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:11:51,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834354992] [2024-11-12 16:11:51,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:51,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:11:51,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:51,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:11:51,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:11:51,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 50 [2024-11-12 16:11:51,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 45 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:51,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:51,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 50 [2024-11-12 16:11:51,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:51,934 INFO L124 PetriNetUnfolderBase]: 1420/2848 cut-off events. [2024-11-12 16:11:51,934 INFO L125 PetriNetUnfolderBase]: For 4488/4566 co-relation queries the response was YES. [2024-11-12 16:11:51,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7752 conditions, 2848 events. 1420/2848 cut-off events. For 4488/4566 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 22600 event pairs, 550 based on Foata normal form. 138/2802 useless extension candidates. Maximal degree in co-relation 7733. Up to 1266 conditions per place. [2024-11-12 16:11:51,951 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 27 selfloop transitions, 4 changer transitions 21/77 dead transitions. [2024-11-12 16:11:51,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 77 transitions, 408 flow [2024-11-12 16:11:51,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:11:51,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:11:51,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2024-11-12 16:11:51,953 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6628571428571428 [2024-11-12 16:11:51,953 INFO L175 Difference]: Start difference. First operand has 70 places, 45 transitions, 192 flow. Second operand 7 states and 232 transitions. [2024-11-12 16:11:51,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 77 transitions, 408 flow [2024-11-12 16:11:51,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 77 transitions, 372 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-12 16:11:51,966 INFO L231 Difference]: Finished difference. Result has 69 places, 45 transitions, 192 flow [2024-11-12 16:11:51,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=69, PETRI_TRANSITIONS=45} [2024-11-12 16:11:51,966 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places. [2024-11-12 16:11:51,967 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 192 flow [2024-11-12 16:11:51,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:51,968 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:51,968 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:51,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:11:51,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:51,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:51,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1810228762, now seen corresponding path program 1 times [2024-11-12 16:11:51,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:51,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625847443] [2024-11-12 16:11:51,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:51,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:52,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:52,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625847443] [2024-11-12 16:11:52,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625847443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:52,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:52,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:11:52,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365050952] [2024-11-12 16:11:52,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:52,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:11:52,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:11:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:11:52,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-11-12 16:11:52,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 45 transitions, 192 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:52,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:52,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-11-12 16:11:52,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:52,585 INFO L124 PetriNetUnfolderBase]: 2501/4607 cut-off events. [2024-11-12 16:11:52,586 INFO L125 PetriNetUnfolderBase]: For 5001/5007 co-relation queries the response was YES. [2024-11-12 16:11:52,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12399 conditions, 4607 events. 2501/4607 cut-off events. For 5001/5007 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 38137 event pairs, 473 based on Foata normal form. 92/4614 useless extension candidates. Maximal degree in co-relation 12379. Up to 1252 conditions per place. [2024-11-12 16:11:52,616 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 43 selfloop transitions, 8 changer transitions 41/109 dead transitions. [2024-11-12 16:11:52,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 109 transitions, 683 flow [2024-11-12 16:11:52,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:11:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:11:52,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 282 transitions. [2024-11-12 16:11:52,618 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2024-11-12 16:11:52,618 INFO L175 Difference]: Start difference. First operand has 69 places, 45 transitions, 192 flow. Second operand 9 states and 282 transitions. [2024-11-12 16:11:52,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 109 transitions, 683 flow [2024-11-12 16:11:52,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 109 transitions, 641 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-11-12 16:11:52,637 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 226 flow [2024-11-12 16:11:52,638 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=226, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2024-11-12 16:11:52,638 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 15 predicate places. [2024-11-12 16:11:52,638 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 226 flow [2024-11-12 16:11:52,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:52,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:52,639 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:52,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:11:52,639 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:52,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1501491575, now seen corresponding path program 1 times [2024-11-12 16:11:52,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:52,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761680505] [2024-11-12 16:11:52,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:52,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:52,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:52,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761680505] [2024-11-12 16:11:52,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761680505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:52,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:52,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:11:52,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403633887] [2024-11-12 16:11:52,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:52,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:11:52,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:52,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:11:52,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:11:52,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-12 16:11:52,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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) [2024-11-12 16:11:52,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:52,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-12 16:11:52,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:53,227 INFO L124 PetriNetUnfolderBase]: 2976/5372 cut-off events. [2024-11-12 16:11:53,227 INFO L125 PetriNetUnfolderBase]: For 9567/9567 co-relation queries the response was YES. [2024-11-12 16:11:53,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15602 conditions, 5372 events. 2976/5372 cut-off events. For 9567/9567 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 41534 event pairs, 617 based on Foata normal form. 108/5419 useless extension candidates. Maximal degree in co-relation 15582. Up to 1342 conditions per place. [2024-11-12 16:11:53,253 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 51 selfloop transitions, 10 changer transitions 56/133 dead transitions. [2024-11-12 16:11:53,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 974 flow [2024-11-12 16:11:53,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:11:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:11:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 285 transitions. [2024-11-12 16:11:53,254 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-12 16:11:53,254 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 226 flow. Second operand 9 states and 285 transitions. [2024-11-12 16:11:53,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 133 transitions, 974 flow [2024-11-12 16:11:53,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 133 transitions, 860 flow, removed 37 selfloop flow, removed 6 redundant places. [2024-11-12 16:11:53,279 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 232 flow [2024-11-12 16:11:53,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=232, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2024-11-12 16:11:53,279 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2024-11-12 16:11:53,280 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 232 flow [2024-11-12 16:11:53,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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) [2024-11-12 16:11:53,280 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:53,280 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:53,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:11:53,280 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:53,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1188726388, now seen corresponding path program 1 times [2024-11-12 16:11:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241868470] [2024-11-12 16:11:53,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:53,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:53,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:53,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241868470] [2024-11-12 16:11:53,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241868470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:53,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:53,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:11:53,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085433686] [2024-11-12 16:11:53,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:53,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:11:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:53,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:11:53,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:11:53,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-11-12 16:11:53,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 232 flow. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-11-12 16:11:53,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:53,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-11-12 16:11:53,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:53,720 INFO L124 PetriNetUnfolderBase]: 1657/3073 cut-off events. [2024-11-12 16:11:53,720 INFO L125 PetriNetUnfolderBase]: For 4297/4297 co-relation queries the response was YES. [2024-11-12 16:11:53,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8761 conditions, 3073 events. 1657/3073 cut-off events. For 4297/4297 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 22814 event pairs, 294 based on Foata normal form. 60/3045 useless extension candidates. Maximal degree in co-relation 8739. Up to 1114 conditions per place. [2024-11-12 16:11:53,739 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 38 selfloop transitions, 7 changer transitions 26/88 dead transitions. [2024-11-12 16:11:53,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 542 flow [2024-11-12 16:11:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 16:11:53,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 16:11:53,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 245 transitions. [2024-11-12 16:11:53,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6125 [2024-11-12 16:11:53,740 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 232 flow. Second operand 8 states and 245 transitions. [2024-11-12 16:11:53,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 542 flow [2024-11-12 16:11:53,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 88 transitions, 488 flow, removed 16 selfloop flow, removed 9 redundant places. [2024-11-12 16:11:53,756 INFO L231 Difference]: Finished difference. Result has 74 places, 46 transitions, 219 flow [2024-11-12 16:11:53,756 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=219, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2024-11-12 16:11:53,757 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2024-11-12 16:11:53,757 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 219 flow [2024-11-12 16:11:53,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-11-12 16:11:53,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:53,757 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:53,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:11:53,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:53,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:53,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1809726284, now seen corresponding path program 1 times [2024-11-12 16:11:53,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:53,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960906764] [2024-11-12 16:11:53,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:53,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:53,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:53,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960906764] [2024-11-12 16:11:53,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960906764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:53,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:53,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:11:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419106074] [2024-11-12 16:11:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:53,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:11:53,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:53,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:11:53,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:11:53,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-12 16:11:53,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:53,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:53,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-12 16:11:53,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:54,373 INFO L124 PetriNetUnfolderBase]: 4847/7976 cut-off events. [2024-11-12 16:11:54,374 INFO L125 PetriNetUnfolderBase]: For 4070/4208 co-relation queries the response was YES. [2024-11-12 16:11:54,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17630 conditions, 7976 events. 4847/7976 cut-off events. For 4070/4208 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 58420 event pairs, 1462 based on Foata normal form. 305/7980 useless extension candidates. Maximal degree in co-relation 17609. Up to 4161 conditions per place. [2024-11-12 16:11:54,426 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 33 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2024-11-12 16:11:54,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 64 transitions, 337 flow [2024-11-12 16:11:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:11:54,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:11:54,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-11-12 16:11:54,427 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.685 [2024-11-12 16:11:54,427 INFO L175 Difference]: Start difference. First operand has 74 places, 46 transitions, 219 flow. Second operand 4 states and 137 transitions. [2024-11-12 16:11:54,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 64 transitions, 337 flow [2024-11-12 16:11:54,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 64 transitions, 312 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-12 16:11:54,444 INFO L231 Difference]: Finished difference. Result has 69 places, 51 transitions, 240 flow [2024-11-12 16:11:54,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=69, PETRI_TRANSITIONS=51} [2024-11-12 16:11:54,445 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places. [2024-11-12 16:11:54,445 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 51 transitions, 240 flow [2024-11-12 16:11:54,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:54,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:54,446 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:54,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 16:11:54,446 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:54,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:54,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1859025279, now seen corresponding path program 1 times [2024-11-12 16:11:54,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:54,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376132104] [2024-11-12 16:11:54,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:54,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:54,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:54,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376132104] [2024-11-12 16:11:54,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376132104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:54,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:54,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:11:54,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111828563] [2024-11-12 16:11:54,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:54,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:11:54,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:54,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:11:54,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:11:54,545 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-12 16:11:54,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 51 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:54,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:54,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-12 16:11:54,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:54,921 INFO L124 PetriNetUnfolderBase]: 4577/7528 cut-off events. [2024-11-12 16:11:54,921 INFO L125 PetriNetUnfolderBase]: For 4117/5612 co-relation queries the response was YES. [2024-11-12 16:11:54,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19081 conditions, 7528 events. 4577/7528 cut-off events. For 4117/5612 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 53336 event pairs, 796 based on Foata normal form. 311/7574 useless extension candidates. Maximal degree in co-relation 19062. Up to 3225 conditions per place. [2024-11-12 16:11:54,963 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 41 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2024-11-12 16:11:54,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 76 transitions, 417 flow [2024-11-12 16:11:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:11:54,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:11:54,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-11-12 16:11:54,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.692 [2024-11-12 16:11:54,967 INFO L175 Difference]: Start difference. First operand has 69 places, 51 transitions, 240 flow. Second operand 5 states and 173 transitions. [2024-11-12 16:11:54,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 76 transitions, 417 flow [2024-11-12 16:11:54,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 408 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 16:11:54,977 INFO L231 Difference]: Finished difference. Result has 73 places, 56 transitions, 299 flow [2024-11-12 16:11:54,977 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=299, PETRI_PLACES=73, PETRI_TRANSITIONS=56} [2024-11-12 16:11:54,978 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-11-12 16:11:54,978 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 56 transitions, 299 flow [2024-11-12 16:11:54,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:54,978 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:54,978 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:54,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 16:11:54,978 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:54,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:54,980 INFO L85 PathProgramCache]: Analyzing trace with hash -867369020, now seen corresponding path program 1 times [2024-11-12 16:11:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:54,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554518054] [2024-11-12 16:11:54,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:54,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:55,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:55,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554518054] [2024-11-12 16:11:55,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554518054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:55,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:55,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:11:55,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348180958] [2024-11-12 16:11:55,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:55,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:11:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:55,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:11:55,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:11:55,090 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-12 16:11:55,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 56 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:55,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:55,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-12 16:11:55,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:55,466 INFO L124 PetriNetUnfolderBase]: 3809/6148 cut-off events. [2024-11-12 16:11:55,466 INFO L125 PetriNetUnfolderBase]: For 7561/9988 co-relation queries the response was YES. [2024-11-12 16:11:55,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18448 conditions, 6148 events. 3809/6148 cut-off events. For 7561/9988 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 40300 event pairs, 232 based on Foata normal form. 294/6233 useless extension candidates. Maximal degree in co-relation 18427. Up to 2864 conditions per place. [2024-11-12 16:11:55,493 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 49 selfloop transitions, 14 changer transitions 0/88 dead transitions. [2024-11-12 16:11:55,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 534 flow [2024-11-12 16:11:55,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:11:55,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:11:55,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 209 transitions. [2024-11-12 16:11:55,494 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6966666666666667 [2024-11-12 16:11:55,494 INFO L175 Difference]: Start difference. First operand has 73 places, 56 transitions, 299 flow. Second operand 6 states and 209 transitions. [2024-11-12 16:11:55,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 534 flow [2024-11-12 16:11:55,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 88 transitions, 518 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-12 16:11:55,499 INFO L231 Difference]: Finished difference. Result has 78 places, 61 transitions, 369 flow [2024-11-12 16:11:55,499 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=78, PETRI_TRANSITIONS=61} [2024-11-12 16:11:55,499 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 22 predicate places. [2024-11-12 16:11:55,500 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 61 transitions, 369 flow [2024-11-12 16:11:55,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:55,500 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:55,500 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:55,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 16:11:55,500 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:55,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:55,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1071106731, now seen corresponding path program 1 times [2024-11-12 16:11:55,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:55,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900615969] [2024-11-12 16:11:55,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:55,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:55,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:55,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900615969] [2024-11-12 16:11:55,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900615969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:55,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:55,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:11:55,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002811548] [2024-11-12 16:11:55,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:55,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:11:55,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:55,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:11:55,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:11:55,587 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-11-12 16:11:55,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 61 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:55,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:55,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-11-12 16:11:55,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:55,955 INFO L124 PetriNetUnfolderBase]: 2742/5378 cut-off events. [2024-11-12 16:11:55,955 INFO L125 PetriNetUnfolderBase]: For 9252/10516 co-relation queries the response was YES. [2024-11-12 16:11:55,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16428 conditions, 5378 events. 2742/5378 cut-off events. For 9252/10516 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 44335 event pairs, 624 based on Foata normal form. 128/4848 useless extension candidates. Maximal degree in co-relation 16405. Up to 2121 conditions per place. [2024-11-12 16:11:55,987 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 35 selfloop transitions, 3 changer transitions 10/89 dead transitions. [2024-11-12 16:11:55,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 89 transitions, 559 flow [2024-11-12 16:11:55,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:11:55,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:11:55,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2024-11-12 16:11:55,988 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-11-12 16:11:55,988 INFO L175 Difference]: Start difference. First operand has 78 places, 61 transitions, 369 flow. Second operand 6 states and 198 transitions. [2024-11-12 16:11:55,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 89 transitions, 559 flow [2024-11-12 16:11:56,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 528 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-12 16:11:56,002 INFO L231 Difference]: Finished difference. Result has 84 places, 62 transitions, 365 flow [2024-11-12 16:11:56,002 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=84, PETRI_TRANSITIONS=62} [2024-11-12 16:11:56,003 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 28 predicate places. [2024-11-12 16:11:56,003 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 365 flow [2024-11-12 16:11:56,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:56,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:11:56,003 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:56,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 16:11:56,004 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-12 16:11:56,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:11:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1750482248, now seen corresponding path program 1 times [2024-11-12 16:11:56,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:11:56,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510555548] [2024-11-12 16:11:56,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:11:56,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:11:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:11:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:11:56,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:11:56,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510555548] [2024-11-12 16:11:56,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510555548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:11:56,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:11:56,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:11:56,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928951954] [2024-11-12 16:11:56,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:11:56,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:11:56,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:11:56,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:11:56,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:11:56,111 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-11-12 16:11:56,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 62 transitions, 365 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:56,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:11:56,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-11-12 16:11:56,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:11:56,522 INFO L124 PetriNetUnfolderBase]: 4106/6332 cut-off events. [2024-11-12 16:11:56,522 INFO L125 PetriNetUnfolderBase]: For 11593/14291 co-relation queries the response was YES. [2024-11-12 16:11:56,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20229 conditions, 6332 events. 4106/6332 cut-off events. For 11593/14291 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 40874 event pairs, 143 based on Foata normal form. 280/6374 useless extension candidates. Maximal degree in co-relation 20209. Up to 2728 conditions per place. [2024-11-12 16:11:56,549 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2024-11-12 16:11:56,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 535 flow [2024-11-12 16:11:56,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:11:56,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:11:56,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2024-11-12 16:11:56,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6657142857142857 [2024-11-12 16:11:56,551 INFO L175 Difference]: Start difference. First operand has 84 places, 62 transitions, 365 flow. Second operand 7 states and 233 transitions. [2024-11-12 16:11:56,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 535 flow [2024-11-12 16:11:56,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 86 transitions, 502 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-11-12 16:11:56,562 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-11-12 16:11:56,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-11-12 16:11:56,563 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 20 predicate places. [2024-11-12 16:11:56,563 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-11-12 16:11:56,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:11:56,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-12 16:11:56,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-12 16:11:56,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-12 16:11:56,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-12 16:11:56,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-12 16:11:56,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-11-12 16:11:56,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 16:11:56,567 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:11:56,574 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:11:56,575 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:11:56,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:11:56 BasicIcfg [2024-11-12 16:11:56,579 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:11:56,583 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:11:56,583 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:11:56,584 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:11:56,584 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:11:48" (3/4) ... [2024-11-12 16:11:56,586 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:11:56,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-12 16:11:56,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-12 16:11:56,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-12 16:11:56,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-12 16:11:56,592 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-11-12 16:11:56,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-12 16:11:56,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 16:11:56,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 16:11:56,665 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:11:56,665 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:11:56,665 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:11:56,666 INFO L158 Benchmark]: Toolchain (without parser) took 8562.85ms. Allocated memory was 182.5MB in the beginning and 690.0MB in the end (delta: 507.5MB). Free memory was 151.2MB in the beginning and 341.5MB in the end (delta: -190.2MB). Peak memory consumption was 316.7MB. Max. memory is 16.1GB. [2024-11-12 16:11:56,666 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:11:56,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.98ms. Allocated memory is still 182.5MB. Free memory was 151.0MB in the beginning and 131.4MB in the end (delta: 19.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-11-12 16:11:56,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.10ms. Allocated memory is still 182.5MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:11:56,666 INFO L158 Benchmark]: Boogie Preprocessor took 38.32ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 126.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:11:56,667 INFO L158 Benchmark]: RCFGBuilder took 378.67ms. Allocated memory is still 182.5MB. Free memory was 126.7MB in the beginning and 105.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 16:11:56,667 INFO L158 Benchmark]: TraceAbstraction took 7593.25ms. Allocated memory was 182.5MB in the beginning and 690.0MB in the end (delta: 507.5MB). Free memory was 105.0MB in the beginning and 345.7MB in the end (delta: -240.7MB). Peak memory consumption was 265.5MB. Max. memory is 16.1GB. [2024-11-12 16:11:56,667 INFO L158 Benchmark]: Witness Printer took 81.87ms. Allocated memory is still 690.0MB. Free memory was 345.7MB in the beginning and 341.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:11:56,668 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.98ms. Allocated memory is still 182.5MB. Free memory was 151.0MB in the beginning and 131.4MB in the end (delta: 19.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.10ms. Allocated memory is still 182.5MB. Free memory was 131.4MB in the beginning and 129.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.32ms. Allocated memory is still 182.5MB. Free memory was 129.3MB in the beginning and 126.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.67ms. Allocated memory is still 182.5MB. Free memory was 126.7MB in the beginning and 105.8MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7593.25ms. Allocated memory was 182.5MB in the beginning and 690.0MB in the end (delta: 507.5MB). Free memory was 105.0MB in the beginning and 345.7MB in the end (delta: -240.7MB). Peak memory consumption was 265.5MB. Max. memory is 16.1GB. * Witness Printer took 81.87ms. Allocated memory is still 690.0MB. Free memory was 345.7MB in the beginning and 341.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 786]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 627 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 596 mSDsluCounter, 241 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1264 IncrementalHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 61 mSDtfsCounter, 1264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=369occurred in iteration=10, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 1050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [2024-11-12 16:11:56,689 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