./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.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 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:35:03,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:35:03,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:35:03,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:35:03,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:35:03,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:35:03,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:35:03,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:35:03,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:35:03,458 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:35:03,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:35:03,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:35:03,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:35:03,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:35:03,460 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:35:03,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:35:03,460 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:35:03,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:35:03,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:35:03,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:35:03,462 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:35:03,463 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:35:03,463 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:35:03,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:35:03,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:35:03,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:35:03,464 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:35:03,465 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:35:03,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:35:03,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:35:03,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:35:03,465 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:35:03,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:35:03,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:35:03,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:35:03,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:35:03,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:35:03,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:35:03,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:35:03,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:35:03,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:35:03,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:35:03,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4fff0b2b9fbf3a1c21190a7a3a2488ff184faa22678fe9af5f2740e4422fce [2024-10-14 19:35:03,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:35:03,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:35:03,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:35:03,735 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:35:03,736 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:35:03,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.i [2024-10-14 19:35:05,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:35:05,349 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:35:05,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.i [2024-10-14 19:35:05,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbddb16fa/b16c893f95c246beaa7673022141f7e8/FLAG9737b8aea [2024-10-14 19:35:05,377 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbddb16fa/b16c893f95c246beaa7673022141f7e8 [2024-10-14 19:35:05,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:35:05,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:35:05,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:35:05,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:35:05,386 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:35:05,387 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ccbbb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05, skipping insertion in model container [2024-10-14 19:35:05,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:35:05,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:35:05,779 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:35:05,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:35:05,854 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:35:05,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05 WrapperNode [2024-10-14 19:35:05,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:35:05,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:35:05,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:35:05,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:35:05,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,889 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-10-14 19:35:05,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:35:05,891 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:35:05,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:35:05,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:35:05,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,902 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,925 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 19:35:05,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,935 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:35:05,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:35:05,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:35:05,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:35:05,947 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (1/1) ... [2024-10-14 19:35:05,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:35:05,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:35:05,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 19:35:05,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 19:35:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:35:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:35:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:35:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:35:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:35:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:35:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:35:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:35:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:35:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:35:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:35:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:35:06,041 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:35:06,164 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:35:06,166 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:35:06,299 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:35:06,300 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:35:06,391 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:35:06,391 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:35:06,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:35:06 BoogieIcfgContainer [2024-10-14 19:35:06,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:35:06,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:35:06,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:35:06,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:35:06,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:35:05" (1/3) ... [2024-10-14 19:35:06,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd16383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:35:06, skipping insertion in model container [2024-10-14 19:35:06,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:35:05" (2/3) ... [2024-10-14 19:35:06,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd16383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:35:06, skipping insertion in model container [2024-10-14 19:35:06,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:35:06" (3/3) ... [2024-10-14 19:35:06,403 INFO L112 eAbstractionObserver]: Analyzing ICFG safe005_tso.i [2024-10-14 19:35:06,417 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:35:06,418 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:35:06,418 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:35:06,468 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:35:06,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-10-14 19:35:06,539 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-10-14 19:35:06,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:35:06,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-10-14 19:35:06,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-10-14 19:35:06,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-10-14 19:35:06,558 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:35:06,568 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;@39527f20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:35:06,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 19:35:06,585 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:35:06,587 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-10-14 19:35:06,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:35:06,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:06,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:06,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:06,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:06,596 INFO L85 PathProgramCache]: Analyzing trace with hash 166983522, now seen corresponding path program 1 times [2024-10-14 19:35:06,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:06,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199067521] [2024-10-14 19:35:06,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:06,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:06,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:06,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199067521] [2024-10-14 19:35:06,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199067521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:06,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:06,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:35:06,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635573409] [2024-10-14 19:35:06,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:06,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:35:06,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:06,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:35:06,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:35:06,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-10-14 19:35:06,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:06,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:06,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-10-14 19:35:06,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:07,089 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-10-14 19:35:07,090 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:35:07,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1211 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-10-14 19:35:07,096 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-10-14 19:35:07,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-10-14 19:35:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:35:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:35:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-10-14 19:35:07,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-10-14 19:35:07,110 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-10-14 19:35:07,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-10-14 19:35:07,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-14 19:35:07,114 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-10-14 19:35:07,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-10-14 19:35:07,119 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-10-14 19:35:07,120 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-10-14 19:35:07,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:07,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:07,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:07,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:35:07,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:07,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:07,122 INFO L85 PathProgramCache]: Analyzing trace with hash 166985015, now seen corresponding path program 1 times [2024-10-14 19:35:07,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:07,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818780722] [2024-10-14 19:35:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:07,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:07,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:07,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:07,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818780722] [2024-10-14 19:35:07,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818780722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:07,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:07,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:35:07,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521342922] [2024-10-14 19:35:07,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:07,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:35:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:07,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:35:07,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:35:07,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-14 19:35:07,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:07,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:07,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-14 19:35:07,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:07,873 INFO L124 PetriNetUnfolderBase]: 1499/2796 cut-off events. [2024-10-14 19:35:07,874 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:35:07,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 2796 events. 1499/2796 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 20413 event pairs, 302 based on Foata normal form. 0/2702 useless extension candidates. Maximal degree in co-relation 5146. Up to 765 conditions per place. [2024-10-14 19:35:07,896 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 28 selfloop transitions, 6 changer transitions 51/100 dead transitions. [2024-10-14 19:35:07,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 100 transitions, 382 flow [2024-10-14 19:35:07,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:35:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:35:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 258 transitions. [2024-10-14 19:35:07,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2024-10-14 19:35:07,902 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 258 transitions. [2024-10-14 19:35:07,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 100 transitions, 382 flow [2024-10-14 19:35:07,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 100 transitions, 381 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:35:07,905 INFO L231 Difference]: Finished difference. Result has 59 places, 38 transitions, 149 flow [2024-10-14 19:35:07,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=149, PETRI_PLACES=59, PETRI_TRANSITIONS=38} [2024-10-14 19:35:07,908 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-10-14 19:35:07,908 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 149 flow [2024-10-14 19:35:07,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:07,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:07,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:07,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:35:07,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:07,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash 27606038, now seen corresponding path program 1 times [2024-10-14 19:35:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:07,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162589674] [2024-10-14 19:35:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:08,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:08,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:08,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162589674] [2024-10-14 19:35:08,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162589674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:08,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:08,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:35:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544864684] [2024-10-14 19:35:08,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:08,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:35:08,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:08,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:35:08,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:35:08,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-14 19:35:08,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:08,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:08,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-14 19:35:08,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:08,415 INFO L124 PetriNetUnfolderBase]: 847/1707 cut-off events. [2024-10-14 19:35:08,416 INFO L125 PetriNetUnfolderBase]: For 2841/2841 co-relation queries the response was YES. [2024-10-14 19:35:08,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4873 conditions, 1707 events. 847/1707 cut-off events. For 2841/2841 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 11833 event pairs, 246 based on Foata normal form. 63/1738 useless extension candidates. Maximal degree in co-relation 4858. Up to 391 conditions per place. [2024-10-14 19:35:08,424 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 30 selfloop transitions, 6 changer transitions 45/96 dead transitions. [2024-10-14 19:35:08,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 96 transitions, 605 flow [2024-10-14 19:35:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:35:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:35:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2024-10-14 19:35:08,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5954545454545455 [2024-10-14 19:35:08,428 INFO L175 Difference]: Start difference. First operand has 59 places, 38 transitions, 149 flow. Second operand 10 states and 262 transitions. [2024-10-14 19:35:08,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 96 transitions, 605 flow [2024-10-14 19:35:08,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 96 transitions, 531 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-10-14 19:35:08,442 INFO L231 Difference]: Finished difference. Result has 66 places, 40 transitions, 183 flow [2024-10-14 19:35:08,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=183, PETRI_PLACES=66, PETRI_TRANSITIONS=40} [2024-10-14 19:35:08,444 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-10-14 19:35:08,445 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 40 transitions, 183 flow [2024-10-14 19:35:08,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:08,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:08,445 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:08,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:35:08,446 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:08,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:08,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1857037482, now seen corresponding path program 1 times [2024-10-14 19:35:08,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:08,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720192042] [2024-10-14 19:35:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:08,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:08,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:08,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720192042] [2024-10-14 19:35:08,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720192042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:08,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:08,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:35:08,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412275509] [2024-10-14 19:35:08,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:08,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:35:08,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:08,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:35:08,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:35:08,628 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-14 19:35:08,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 40 transitions, 183 flow. Second operand has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:08,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:08,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-14 19:35:08,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:08,949 INFO L124 PetriNetUnfolderBase]: 916/1932 cut-off events. [2024-10-14 19:35:08,949 INFO L125 PetriNetUnfolderBase]: For 3354/3357 co-relation queries the response was YES. [2024-10-14 19:35:08,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5470 conditions, 1932 events. 916/1932 cut-off events. For 3354/3357 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 14132 event pairs, 175 based on Foata normal form. 32/1927 useless extension candidates. Maximal degree in co-relation 5448. Up to 655 conditions per place. [2024-10-14 19:35:08,962 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 34 selfloop transitions, 10 changer transitions 27/86 dead transitions. [2024-10-14 19:35:08,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 86 transitions, 573 flow [2024-10-14 19:35:08,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:35:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:35:08,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2024-10-14 19:35:08,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6331168831168831 [2024-10-14 19:35:08,965 INFO L175 Difference]: Start difference. First operand has 66 places, 40 transitions, 183 flow. Second operand 7 states and 195 transitions. [2024-10-14 19:35:08,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 86 transitions, 573 flow [2024-10-14 19:35:08,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 527 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-10-14 19:35:08,981 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 221 flow [2024-10-14 19:35:08,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=221, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2024-10-14 19:35:08,982 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-10-14 19:35:08,983 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 221 flow [2024-10-14 19:35:08,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.0) internal successors, (147), 7 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:08,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:08,984 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:08,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:35:08,985 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:08,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1623304601, now seen corresponding path program 1 times [2024-10-14 19:35:08,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:08,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028115303] [2024-10-14 19:35:08,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:08,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:09,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028115303] [2024-10-14 19:35:09,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028115303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:09,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:09,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 19:35:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097686644] [2024-10-14 19:35:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:09,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 19:35:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 19:35:09,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 19:35:09,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-14 19:35:09,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 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) [2024-10-14 19:35:09,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:09,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-14 19:35:09,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:09,441 INFO L124 PetriNetUnfolderBase]: 793/1721 cut-off events. [2024-10-14 19:35:09,441 INFO L125 PetriNetUnfolderBase]: For 2185/2191 co-relation queries the response was YES. [2024-10-14 19:35:09,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4613 conditions, 1721 events. 793/1721 cut-off events. For 2185/2191 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12716 event pairs, 261 based on Foata normal form. 32/1728 useless extension candidates. Maximal degree in co-relation 4590. Up to 339 conditions per place. [2024-10-14 19:35:09,450 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 35 selfloop transitions, 7 changer transitions 39/96 dead transitions. [2024-10-14 19:35:09,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 96 transitions, 576 flow [2024-10-14 19:35:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 19:35:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-14 19:35:09,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 288 transitions. [2024-10-14 19:35:09,453 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5950413223140496 [2024-10-14 19:35:09,453 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 221 flow. Second operand 11 states and 288 transitions. [2024-10-14 19:35:09,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 96 transitions, 576 flow [2024-10-14 19:35:09,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 96 transitions, 518 flow, removed 27 selfloop flow, removed 7 redundant places. [2024-10-14 19:35:09,459 INFO L231 Difference]: Finished difference. Result has 73 places, 39 transitions, 182 flow [2024-10-14 19:35:09,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=182, PETRI_PLACES=73, PETRI_TRANSITIONS=39} [2024-10-14 19:35:09,460 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2024-10-14 19:35:09,461 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 39 transitions, 182 flow [2024-10-14 19:35:09,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 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) [2024-10-14 19:35:09,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:09,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:09,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:35:09,462 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:09,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:09,465 INFO L85 PathProgramCache]: Analyzing trace with hash -2071217264, now seen corresponding path program 1 times [2024-10-14 19:35:09,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:09,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228779355] [2024-10-14 19:35:09,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:09,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:09,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:09,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:09,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228779355] [2024-10-14 19:35:09,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228779355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:09,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:09,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:35:09,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524262967] [2024-10-14 19:35:09,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:09,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:35:09,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:35:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:35:09,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-14 19:35:09,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 39 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:09,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:09,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-14 19:35:09,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:09,719 INFO L124 PetriNetUnfolderBase]: 930/1773 cut-off events. [2024-10-14 19:35:09,719 INFO L125 PetriNetUnfolderBase]: For 1022/1026 co-relation queries the response was YES. [2024-10-14 19:35:09,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4012 conditions, 1773 events. 930/1773 cut-off events. For 1022/1026 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 11717 event pairs, 190 based on Foata normal form. 81/1780 useless extension candidates. Maximal degree in co-relation 3987. Up to 815 conditions per place. [2024-10-14 19:35:09,729 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 25 selfloop transitions, 5 changer transitions 2/54 dead transitions. [2024-10-14 19:35:09,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 54 transitions, 280 flow [2024-10-14 19:35:09,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:35:09,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:35:09,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-10-14 19:35:09,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-10-14 19:35:09,731 INFO L175 Difference]: Start difference. First operand has 73 places, 39 transitions, 182 flow. Second operand 4 states and 122 transitions. [2024-10-14 19:35:09,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 54 transitions, 280 flow [2024-10-14 19:35:09,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 235 flow, removed 9 selfloop flow, removed 14 redundant places. [2024-10-14 19:35:09,735 INFO L231 Difference]: Finished difference. Result has 58 places, 43 transitions, 175 flow [2024-10-14 19:35:09,736 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2024-10-14 19:35:09,738 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 10 predicate places. [2024-10-14 19:35:09,738 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 175 flow [2024-10-14 19:35:09,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:09,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:09,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:09,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:35:09,739 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:09,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:09,740 INFO L85 PathProgramCache]: Analyzing trace with hash -2063278423, now seen corresponding path program 1 times [2024-10-14 19:35:09,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:09,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319504429] [2024-10-14 19:35:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:09,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:09,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:09,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319504429] [2024-10-14 19:35:09,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319504429] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:09,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:09,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:35:09,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413389544] [2024-10-14 19:35:09,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:09,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:35:09,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:09,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:35:09,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:35:09,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-14 19:35:09,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:09,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:09,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-14 19:35:09,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:10,001 INFO L124 PetriNetUnfolderBase]: 845/1628 cut-off events. [2024-10-14 19:35:10,002 INFO L125 PetriNetUnfolderBase]: For 735/1196 co-relation queries the response was YES. [2024-10-14 19:35:10,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4082 conditions, 1628 events. 845/1628 cut-off events. For 735/1196 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 10230 event pairs, 69 based on Foata normal form. 91/1651 useless extension candidates. Maximal degree in co-relation 4066. Up to 660 conditions per place. [2024-10-14 19:35:10,012 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 29 selfloop transitions, 8 changer transitions 5/64 dead transitions. [2024-10-14 19:35:10,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 322 flow [2024-10-14 19:35:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:35:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:35:10,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-10-14 19:35:10,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-10-14 19:35:10,013 INFO L175 Difference]: Start difference. First operand has 58 places, 43 transitions, 175 flow. Second operand 5 states and 154 transitions. [2024-10-14 19:35:10,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 322 flow [2024-10-14 19:35:10,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 317 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-14 19:35:10,016 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 219 flow [2024-10-14 19:35:10,017 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-10-14 19:35:10,018 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-10-14 19:35:10,018 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 219 flow [2024-10-14 19:35:10,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:10,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:10,019 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:10,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:35:10,019 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:10,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash -244643716, now seen corresponding path program 1 times [2024-10-14 19:35:10,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:10,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967523079] [2024-10-14 19:35:10,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:10,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:10,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:10,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967523079] [2024-10-14 19:35:10,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967523079] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:10,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:10,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:35:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129595442] [2024-10-14 19:35:10,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:10,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:35:10,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:10,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:35:10,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:35:10,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-14 19:35:10,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:10,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:10,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-14 19:35:10,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:10,277 INFO L124 PetriNetUnfolderBase]: 572/1085 cut-off events. [2024-10-14 19:35:10,278 INFO L125 PetriNetUnfolderBase]: For 1600/2258 co-relation queries the response was YES. [2024-10-14 19:35:10,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3237 conditions, 1085 events. 572/1085 cut-off events. For 1600/2258 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5769 event pairs, 18 based on Foata normal form. 86/1114 useless extension candidates. Maximal degree in co-relation 3218. Up to 348 conditions per place. [2024-10-14 19:35:10,283 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 11 changer transitions 5/65 dead transitions. [2024-10-14 19:35:10,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 354 flow [2024-10-14 19:35:10,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 19:35:10,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-14 19:35:10,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2024-10-14 19:35:10,284 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6704545454545454 [2024-10-14 19:35:10,284 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 219 flow. Second operand 6 states and 177 transitions. [2024-10-14 19:35:10,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 354 flow [2024-10-14 19:35:10,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 317 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-10-14 19:35:10,288 INFO L231 Difference]: Finished difference. Result has 63 places, 46 transitions, 221 flow [2024-10-14 19:35:10,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=221, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2024-10-14 19:35:10,289 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-10-14 19:35:10,289 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 221 flow [2024-10-14 19:35:10,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:10,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:35:10,290 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:10,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 19:35:10,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-14 19:35:10,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:35:10,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1548965134, now seen corresponding path program 1 times [2024-10-14 19:35:10,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:35:10,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906469623] [2024-10-14 19:35:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:35:10,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:35:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:35:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:35:10,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:35:10,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906469623] [2024-10-14 19:35:10,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906469623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:35:10,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:35:10,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:35:10,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726658371] [2024-10-14 19:35:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:35:10,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:35:10,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:35:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:35:10,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:35:10,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-14 19:35:10,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:10,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:35:10,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-14 19:35:10,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:35:10,571 INFO L124 PetriNetUnfolderBase]: 508/1118 cut-off events. [2024-10-14 19:35:10,571 INFO L125 PetriNetUnfolderBase]: For 1397/1472 co-relation queries the response was YES. [2024-10-14 19:35:10,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3065 conditions, 1118 events. 508/1118 cut-off events. For 1397/1472 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7022 event pairs, 134 based on Foata normal form. 24/1032 useless extension candidates. Maximal degree in co-relation 3048. Up to 588 conditions per place. [2024-10-14 19:35:10,576 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2024-10-14 19:35:10,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 71 transitions, 405 flow [2024-10-14 19:35:10,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 19:35:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 19:35:10,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 175 transitions. [2024-10-14 19:35:10,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-10-14 19:35:10,578 INFO L175 Difference]: Start difference. First operand has 63 places, 46 transitions, 221 flow. Second operand 7 states and 175 transitions. [2024-10-14 19:35:10,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 71 transitions, 405 flow [2024-10-14 19:35:10,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 355 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-10-14 19:35:10,583 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-10-14 19:35:10,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-10-14 19:35:10,584 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-10-14 19:35:10,584 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-10-14 19:35:10,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 19:35:10,586 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-14 19:35:10,587 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-14 19:35:10,588 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-14 19:35:10,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-14 19:35:10,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-14 19:35:10,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 19:35:10,589 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:35:10,593 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:35:10,593 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:35:10,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:35:10 BasicIcfg [2024-10-14 19:35:10,601 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:35:10,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:35:10,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:35:10,601 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:35:10,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:35:06" (3/4) ... [2024-10-14 19:35:10,604 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:35:10,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-14 19:35:10,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-14 19:35:10,606 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-14 19:35:10,609 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-14 19:35:10,611 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-14 19:35:10,611 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 19:35:10,611 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-14 19:35:10,681 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:35:10,683 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:35:10,683 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:35:10,684 INFO L158 Benchmark]: Toolchain (without parser) took 5303.06ms. Allocated memory was 159.4MB in the beginning and 289.4MB in the end (delta: 130.0MB). Free memory was 84.4MB in the beginning and 110.5MB in the end (delta: -26.1MB). Peak memory consumption was 105.1MB. Max. memory is 16.1GB. [2024-10-14 19:35:10,684 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 108.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:35:10,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 473.74ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 84.2MB in the beginning and 179.8MB in the end (delta: -95.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-10-14 19:35:10,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.93ms. Allocated memory is still 216.0MB. Free memory was 179.8MB in the beginning and 177.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:35:10,684 INFO L158 Benchmark]: Boogie Preprocessor took 54.80ms. Allocated memory is still 216.0MB. Free memory was 177.7MB in the beginning and 175.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:35:10,685 INFO L158 Benchmark]: RCFGBuilder took 445.89ms. Allocated memory is still 216.0MB. Free memory was 175.6MB in the beginning and 154.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 19:35:10,686 INFO L158 Benchmark]: TraceAbstraction took 4206.31ms. Allocated memory was 216.0MB in the beginning and 289.4MB in the end (delta: 73.4MB). Free memory was 153.5MB in the beginning and 114.7MB in the end (delta: 38.9MB). Peak memory consumption was 113.3MB. Max. memory is 16.1GB. [2024-10-14 19:35:10,686 INFO L158 Benchmark]: Witness Printer took 82.06ms. Allocated memory is still 289.4MB. Free memory was 114.7MB in the beginning and 110.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:35:10,688 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 108.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 473.74ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 84.2MB in the beginning and 179.8MB in the end (delta: -95.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.93ms. Allocated memory is still 216.0MB. Free memory was 179.8MB in the beginning and 177.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.80ms. Allocated memory is still 216.0MB. Free memory was 177.7MB in the beginning and 175.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.89ms. Allocated memory is still 216.0MB. Free memory was 175.6MB in the beginning and 154.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4206.31ms. Allocated memory was 216.0MB in the beginning and 289.4MB in the end (delta: 73.4MB). Free memory was 153.5MB in the beginning and 114.7MB in the end (delta: 38.9MB). Peak memory consumption was 113.3MB. Max. memory is 16.1GB. * Witness Printer took 82.06ms. Allocated memory is still 289.4MB. Free memory was 114.7MB in the beginning and 110.5MB 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: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 374 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 349 mSDsluCounter, 185 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 798 IncrementalHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 55 mSDtfsCounter, 798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=4, InterpolantAutomatonStates: 62, 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, 1.2s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 870 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 19:35:10,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE