./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/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:37:32,161 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:37:32,235 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:37:32,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:37:32,242 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:37:32,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:37:32,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:37:32,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:37:32,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:37:32,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:37:32,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:37:32,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:37:32,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:37:32,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:37:32,281 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:37:32,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:37:32,281 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:37:32,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:37:32,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:37:32,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:37:32,282 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:37:32,284 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:37:32,284 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:37:32,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:37:32,284 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:37:32,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:37:32,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:37:32,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:37:32,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:37:32,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:37:32,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:37:32,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:37:32,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:37:32,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:37:32,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:37:32,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:37:32,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:37:32,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:37:32,286 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:37:32,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:37:32,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:37:32,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:37:32,288 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2024-10-11 19:37:32,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:37:32,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:37:32,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:37:32,509 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:37:32,510 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:37:32,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-10-11 19:37:33,739 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:37:33,965 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:37:33,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2024-10-11 19:37:33,983 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f6c5a882d/1daa9637cd0a4c23ae25a160500731c2/FLAG3763490e4 [2024-10-11 19:37:33,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f6c5a882d/1daa9637cd0a4c23ae25a160500731c2 [2024-10-11 19:37:34,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:37:34,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:37:34,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:37:34,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:37:34,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:37:34,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:37:33" (1/1) ... [2024-10-11 19:37:34,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6ca71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34, skipping insertion in model container [2024-10-11 19:37:34,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:37:33" (1/1) ... [2024-10-11 19:37:34,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:37:34,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:37:34,380 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:37:34,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:37:34,470 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:37:34,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34 WrapperNode [2024-10-11 19:37:34,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:37:34,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:37:34,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:37:34,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:37:34,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,506 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-10-11 19:37:34,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:37:34,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:37:34,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:37:34,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:37:34,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,536 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]. [2024-10-11 19:37:34,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,547 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:37:34,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:37:34,549 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:37:34,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:37:34,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (1/1) ... [2024-10-11 19:37:34,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:37:34,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:37:34,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:37:34,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:37:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:37:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:37:34,634 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:37:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:37:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:37:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:37:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:37:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:37:34,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:37:34,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:37:34,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:37:34,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:37:34,638 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:37:34,772 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:37:34,774 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:37:34,921 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:37:34,921 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:37:34,992 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:37:34,992 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:37:34,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:37:34 BoogieIcfgContainer [2024-10-11 19:37:34,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:37:34,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:37:34,997 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:37:35,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:37:35,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:37:33" (1/3) ... [2024-10-11 19:37:35,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5120cfea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:37:35, skipping insertion in model container [2024-10-11 19:37:35,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:37:34" (2/3) ... [2024-10-11 19:37:35,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5120cfea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:37:35, skipping insertion in model container [2024-10-11 19:37:35,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:37:34" (3/3) ... [2024-10-11 19:37:35,003 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2024-10-11 19:37:35,018 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:37:35,019 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:37:35,020 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:37:35,058 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:37:35,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-10-11 19:37:35,117 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-11 19:37:35,117 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:37:35,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-10-11 19:37:35,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-10-11 19:37:35,124 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-10-11 19:37:35,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:37:35,141 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;@64d2f294, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:37:35,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 19:37:35,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:37:35,152 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-10-11 19:37:35,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:37:35,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:35,153 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:37:35,154 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)] === [2024-10-11 19:37:35,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-10-11 19:37:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:35,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021188456] [2024-10-11 19:37:35,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:35,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:35,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:35,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:35,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021188456] [2024-10-11 19:37:35,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021188456] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:35,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:35,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:37:35,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550976121] [2024-10-11 19:37:35,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:35,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:37:35,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:35,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:37:35,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:37:35,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-10-11 19:37:35,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-11 19:37:35,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:35,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-10-11 19:37:35,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:35,607 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-10-11 19:37:35,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:37:35,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-10-11 19:37:35,615 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-10-11 19:37:35,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-10-11 19:37:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:37:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:37:35,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-10-11 19:37:35,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-11 19:37:35,629 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-10-11 19:37:35,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-10-11 19:37:35,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:37:35,633 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-10-11 19:37:35,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-10-11 19:37:35,637 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-10-11 19:37:35,637 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-10-11 19:37:35,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-11 19:37:35,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:35,638 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:37:35,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:37:35,639 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)] === [2024-10-11 19:37:35,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:35,639 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-10-11 19:37:35,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:35,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494413614] [2024-10-11 19:37:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:35,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:35,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:35,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494413614] [2024-10-11 19:37:35,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494413614] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:35,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:35,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:37:35,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836997650] [2024-10-11 19:37:35,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:35,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:37:35,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:35,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:37:35,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:37:35,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:37:35,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-10-11 19:37:35,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:35,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:37:35,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:36,436 INFO L124 PetriNetUnfolderBase]: 1499/2782 cut-off events. [2024-10-11 19:37:36,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:37:36,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5142 conditions, 2782 events. 1499/2782 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 19862 event pairs, 374 based on Foata normal form. 0/2688 useless extension candidates. Maximal degree in co-relation 5136. Up to 818 conditions per place. [2024-10-11 19:37:36,453 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 29 selfloop transitions, 6 changer transitions 55/104 dead transitions. [2024-10-11 19:37:36,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 400 flow [2024-10-11 19:37:36,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:37:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:37:36,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 254 transitions. [2024-10-11 19:37:36,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6563307493540051 [2024-10-11 19:37:36,456 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 254 transitions. [2024-10-11 19:37:36,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 104 transitions, 400 flow [2024-10-11 19:37:36,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 104 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:37:36,459 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2024-10-11 19:37:36,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-10-11 19:37:36,460 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-10-11 19:37:36,460 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2024-10-11 19:37:36,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2024-10-11 19:37:36,461 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:36,461 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:37:36,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:37:36,461 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)] === [2024-10-11 19:37:36,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:36,462 INFO L85 PathProgramCache]: Analyzing trace with hash 861097345, now seen corresponding path program 1 times [2024-10-11 19:37:36,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:36,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335730020] [2024-10-11 19:37:36,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:36,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:36,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:36,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335730020] [2024-10-11 19:37:36,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335730020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:36,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:36,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:37:36,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101001600] [2024-10-11 19:37:36,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:36,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:37:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:37:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:37:36,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:37:36,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:36,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:36,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:37:36,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:36,956 INFO L124 PetriNetUnfolderBase]: 976/1975 cut-off events. [2024-10-11 19:37:36,956 INFO L125 PetriNetUnfolderBase]: For 3016/3021 co-relation queries the response was YES. [2024-10-11 19:37:36,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5652 conditions, 1975 events. 976/1975 cut-off events. For 3016/3021 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 13633 event pairs, 150 based on Foata normal form. 60/2020 useless extension candidates. Maximal degree in co-relation 5637. Up to 704 conditions per place. [2024-10-11 19:37:36,996 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 36 selfloop transitions, 10 changer transitions 46/106 dead transitions. [2024-10-11 19:37:36,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 106 transitions, 707 flow [2024-10-11 19:37:37,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:37:37,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:37:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 265 transitions. [2024-10-11 19:37:37,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2024-10-11 19:37:37,004 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 265 transitions. [2024-10-11 19:37:37,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 106 transitions, 707 flow [2024-10-11 19:37:37,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 106 transitions, 613 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-10-11 19:37:37,027 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 237 flow [2024-10-11 19:37:37,031 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-10-11 19:37:37,032 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-10-11 19:37:37,032 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 237 flow [2024-10-11 19:37:37,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:37,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:37,032 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:37:37,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:37:37,033 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)] === [2024-10-11 19:37:37,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:37,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2110605603, now seen corresponding path program 1 times [2024-10-11 19:37:37,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:37,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500316019] [2024-10-11 19:37:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:37,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:37,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:37,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:37,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500316019] [2024-10-11 19:37:37,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500316019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:37,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:37,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:37:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551950382] [2024-10-11 19:37:37,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:37,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:37:37,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:37,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:37:37,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:37:37,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:37:37,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-10-11 19:37:37,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:37,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:37:37,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:37,526 INFO L124 PetriNetUnfolderBase]: 846/1694 cut-off events. [2024-10-11 19:37:37,527 INFO L125 PetriNetUnfolderBase]: For 4557/4564 co-relation queries the response was YES. [2024-10-11 19:37:37,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5493 conditions, 1694 events. 846/1694 cut-off events. For 4557/4564 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11282 event pairs, 216 based on Foata normal form. 42/1727 useless extension candidates. Maximal degree in co-relation 5471. Up to 662 conditions per place. [2024-10-11 19:37:37,540 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 40 selfloop transitions, 12 changer transitions 32/98 dead transitions. [2024-10-11 19:37:37,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 98 transitions, 679 flow [2024-10-11 19:37:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:37:37,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:37:37,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-10-11 19:37:37,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5953488372093023 [2024-10-11 19:37:37,543 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 237 flow. Second operand 10 states and 256 transitions. [2024-10-11 19:37:37,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 98 transitions, 679 flow [2024-10-11 19:37:37,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 98 transitions, 613 flow, removed 33 selfloop flow, removed 2 redundant places. [2024-10-11 19:37:37,563 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 311 flow [2024-10-11 19:37:37,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2024-10-11 19:37:37,565 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-10-11 19:37:37,565 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 311 flow [2024-10-11 19:37:37,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2024-10-11 19:37:37,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:37,566 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] [2024-10-11 19:37:37,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:37:37,567 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)] === [2024-10-11 19:37:37,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:37,567 INFO L85 PathProgramCache]: Analyzing trace with hash 511833086, now seen corresponding path program 1 times [2024-10-11 19:37:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:37,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746424623] [2024-10-11 19:37:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:37,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:37,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:37,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:37,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746424623] [2024-10-11 19:37:37,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746424623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:37,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:37,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:37:37,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063220944] [2024-10-11 19:37:37,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:37,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:37:37,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:37,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:37:37,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:37:37,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:37:37,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 311 flow. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-10-11 19:37:37,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:37,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:37:37,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:38,039 INFO L124 PetriNetUnfolderBase]: 926/1875 cut-off events. [2024-10-11 19:37:38,039 INFO L125 PetriNetUnfolderBase]: For 5448/5452 co-relation queries the response was YES. [2024-10-11 19:37:38,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6238 conditions, 1875 events. 926/1875 cut-off events. For 5448/5452 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 13075 event pairs, 131 based on Foata normal form. 64/1904 useless extension candidates. Maximal degree in co-relation 6207. Up to 626 conditions per place. [2024-10-11 19:37:38,051 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 34 selfloop transitions, 9 changer transitions 51/108 dead transitions. [2024-10-11 19:37:38,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 108 transitions, 881 flow [2024-10-11 19:37:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 19:37:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 19:37:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 281 transitions. [2024-10-11 19:37:38,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5940803382663847 [2024-10-11 19:37:38,053 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 311 flow. Second operand 11 states and 281 transitions. [2024-10-11 19:37:38,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 108 transitions, 881 flow [2024-10-11 19:37:38,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 108 transitions, 819 flow, removed 28 selfloop flow, removed 12 redundant places. [2024-10-11 19:37:38,069 INFO L231 Difference]: Finished difference. Result has 75 places, 42 transitions, 270 flow [2024-10-11 19:37:38,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=270, PETRI_PLACES=75, PETRI_TRANSITIONS=42} [2024-10-11 19:37:38,070 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2024-10-11 19:37:38,071 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 42 transitions, 270 flow [2024-10-11 19:37:38,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 7 states have internal predecessors, (140), 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) [2024-10-11 19:37:38,071 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:38,071 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] [2024-10-11 19:37:38,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:37:38,072 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)] === [2024-10-11 19:37:38,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:38,073 INFO L85 PathProgramCache]: Analyzing trace with hash 549789387, now seen corresponding path program 1 times [2024-10-11 19:37:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:38,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596757594] [2024-10-11 19:37:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:38,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:38,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:38,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:38,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596757594] [2024-10-11 19:37:38,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596757594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:38,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:38,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:37:38,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781800697] [2024-10-11 19:37:38,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:38,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:37:38,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:38,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:37:38,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:37:38,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:37:38,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 42 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 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) [2024-10-11 19:37:38,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:38,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:37:38,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:38,401 INFO L124 PetriNetUnfolderBase]: 412/861 cut-off events. [2024-10-11 19:37:38,402 INFO L125 PetriNetUnfolderBase]: For 2164/2170 co-relation queries the response was YES. [2024-10-11 19:37:38,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 861 events. 412/861 cut-off events. For 2164/2170 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4955 event pairs, 102 based on Foata normal form. 20/852 useless extension candidates. Maximal degree in co-relation 2881. Up to 294 conditions per place. [2024-10-11 19:37:38,410 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 34 selfloop transitions, 7 changer transitions 19/74 dead transitions. [2024-10-11 19:37:38,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 74 transitions, 530 flow [2024-10-11 19:37:38,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:37:38,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:37:38,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-10-11 19:37:38,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5813953488372093 [2024-10-11 19:37:38,412 INFO L175 Difference]: Start difference. First operand has 75 places, 42 transitions, 270 flow. Second operand 8 states and 200 transitions. [2024-10-11 19:37:38,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 74 transitions, 530 flow [2024-10-11 19:37:38,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 74 transitions, 473 flow, removed 14 selfloop flow, removed 11 redundant places. [2024-10-11 19:37:38,421 INFO L231 Difference]: Finished difference. Result has 70 places, 42 transitions, 254 flow [2024-10-11 19:37:38,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=254, PETRI_PLACES=70, PETRI_TRANSITIONS=42} [2024-10-11 19:37:38,422 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-10-11 19:37:38,423 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 42 transitions, 254 flow [2024-10-11 19:37:38,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 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) [2024-10-11 19:37:38,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:38,423 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] [2024-10-11 19:37:38,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:37:38,424 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)] === [2024-10-11 19:37:38,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:38,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1204596331, now seen corresponding path program 1 times [2024-10-11 19:37:38,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:38,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291761428] [2024-10-11 19:37:38,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:38,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:38,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:38,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291761428] [2024-10-11 19:37:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291761428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:38,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:38,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:37:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797085815] [2024-10-11 19:37:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:38,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:37:38,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:38,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:37:38,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:37:38,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-10-11 19:37:38,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 42 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:38,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:38,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-10-11 19:37:38,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:38,681 INFO L124 PetriNetUnfolderBase]: 381/860 cut-off events. [2024-10-11 19:37:38,682 INFO L125 PetriNetUnfolderBase]: For 2153/2252 co-relation queries the response was YES. [2024-10-11 19:37:38,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 860 events. 381/860 cut-off events. For 2153/2252 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5376 event pairs, 156 based on Foata normal form. 33/866 useless extension candidates. Maximal degree in co-relation 2786. Up to 277 conditions per place. [2024-10-11 19:37:38,688 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 5 changer transitions 15/64 dead transitions. [2024-10-11 19:37:38,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 432 flow [2024-10-11 19:37:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:37:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:37:38,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-10-11 19:37:38,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6201550387596899 [2024-10-11 19:37:38,690 INFO L175 Difference]: Start difference. First operand has 70 places, 42 transitions, 254 flow. Second operand 6 states and 160 transitions. [2024-10-11 19:37:38,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 432 flow [2024-10-11 19:37:38,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 387 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-10-11 19:37:38,695 INFO L231 Difference]: Finished difference. Result has 67 places, 39 transitions, 209 flow [2024-10-11 19:37:38,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=67, PETRI_TRANSITIONS=39} [2024-10-11 19:37:38,696 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-10-11 19:37:38,696 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 39 transitions, 209 flow [2024-10-11 19:37:38,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:38,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:38,697 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] [2024-10-11 19:37:38,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:37:38,697 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)] === [2024-10-11 19:37:38,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash -6368503, now seen corresponding path program 2 times [2024-10-11 19:37:38,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:38,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769413534] [2024-10-11 19:37:38,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:38,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:38,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:38,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769413534] [2024-10-11 19:37:38,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769413534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:38,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:38,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:37:38,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573853296] [2024-10-11 19:37:38,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:38,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:37:38,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:38,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:37:38,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:37:38,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 43 [2024-10-11 19:37:38,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 39 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:38,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:38,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 43 [2024-10-11 19:37:38,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:38,957 INFO L124 PetriNetUnfolderBase]: 286/655 cut-off events. [2024-10-11 19:37:38,958 INFO L125 PetriNetUnfolderBase]: For 973/994 co-relation queries the response was YES. [2024-10-11 19:37:38,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2013 conditions, 655 events. 286/655 cut-off events. For 973/994 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3900 event pairs, 92 based on Foata normal form. 24/670 useless extension candidates. Maximal degree in co-relation 1995. Up to 183 conditions per place. [2024-10-11 19:37:38,962 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 20 selfloop transitions, 2 changer transitions 25/63 dead transitions. [2024-10-11 19:37:38,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 365 flow [2024-10-11 19:37:38,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:37:38,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:37:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-10-11 19:37:38,963 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6112956810631229 [2024-10-11 19:37:38,963 INFO L175 Difference]: Start difference. First operand has 67 places, 39 transitions, 209 flow. Second operand 7 states and 184 transitions. [2024-10-11 19:37:38,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 365 flow [2024-10-11 19:37:38,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 63 transitions, 326 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-10-11 19:37:38,967 INFO L231 Difference]: Finished difference. Result has 65 places, 33 transitions, 125 flow [2024-10-11 19:37:38,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=125, PETRI_PLACES=65, PETRI_TRANSITIONS=33} [2024-10-11 19:37:38,968 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-10-11 19:37:38,968 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 33 transitions, 125 flow [2024-10-11 19:37:38,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:38,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:38,969 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] [2024-10-11 19:37:38,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:37:38,969 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)] === [2024-10-11 19:37:38,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:38,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1572595045, now seen corresponding path program 3 times [2024-10-11 19:37:38,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:38,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542724231] [2024-10-11 19:37:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:38,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:39,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:39,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542724231] [2024-10-11 19:37:39,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542724231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:39,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:39,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:37:39,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621546984] [2024-10-11 19:37:39,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:39,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:37:39,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:39,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:37:39,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:37:39,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:37:39,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 33 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-10-11 19:37:39,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:39,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:37:39,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:39,201 INFO L124 PetriNetUnfolderBase]: 370/728 cut-off events. [2024-10-11 19:37:39,202 INFO L125 PetriNetUnfolderBase]: For 421/429 co-relation queries the response was YES. [2024-10-11 19:37:39,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 728 events. 370/728 cut-off events. For 421/429 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3980 event pairs, 78 based on Foata normal form. 27/727 useless extension candidates. Maximal degree in co-relation 1657. Up to 353 conditions per place. [2024-10-11 19:37:39,207 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 24 selfloop transitions, 5 changer transitions 1/46 dead transitions. [2024-10-11 19:37:39,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 46 transitions, 213 flow [2024-10-11 19:37:39,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:37:39,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:37:39,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-10-11 19:37:39,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-10-11 19:37:39,209 INFO L175 Difference]: Start difference. First operand has 65 places, 33 transitions, 125 flow. Second operand 4 states and 116 transitions. [2024-10-11 19:37:39,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 46 transitions, 213 flow [2024-10-11 19:37:39,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 185 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-10-11 19:37:39,211 INFO L231 Difference]: Finished difference. Result has 53 places, 36 transitions, 131 flow [2024-10-11 19:37:39,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=53, PETRI_TRANSITIONS=36} [2024-10-11 19:37:39,212 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 6 predicate places. [2024-10-11 19:37:39,212 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 36 transitions, 131 flow [2024-10-11 19:37:39,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-10-11 19:37:39,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:39,213 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] [2024-10-11 19:37:39,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:37:39,213 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:37:39,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:39,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1889347666, now seen corresponding path program 1 times [2024-10-11 19:37:39,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:39,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640658287] [2024-10-11 19:37:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:39,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:39,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:39,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640658287] [2024-10-11 19:37:39,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640658287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:39,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:39,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:37:39,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520978342] [2024-10-11 19:37:39,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:39,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:37:39,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:39,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:37:39,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:37:39,318 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:37:39,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 36 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:37:39,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:39,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:37:39,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:39,394 INFO L124 PetriNetUnfolderBase]: 285/570 cut-off events. [2024-10-11 19:37:39,394 INFO L125 PetriNetUnfolderBase]: For 271/351 co-relation queries the response was YES. [2024-10-11 19:37:39,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 570 events. 285/570 cut-off events. For 271/351 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2753 event pairs, 27 based on Foata normal form. 30/581 useless extension candidates. Maximal degree in co-relation 1404. Up to 245 conditions per place. [2024-10-11 19:37:39,398 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 28 selfloop transitions, 8 changer transitions 1/53 dead transitions. [2024-10-11 19:37:39,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 256 flow [2024-10-11 19:37:39,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:37:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:37:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2024-10-11 19:37:39,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6697674418604651 [2024-10-11 19:37:39,399 INFO L175 Difference]: Start difference. First operand has 53 places, 36 transitions, 131 flow. Second operand 5 states and 144 transitions. [2024-10-11 19:37:39,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 256 flow [2024-10-11 19:37:39,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 53 transitions, 246 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-11 19:37:39,401 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 171 flow [2024-10-11 19:37:39,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-10-11 19:37:39,401 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-10-11 19:37:39,402 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 171 flow [2024-10-11 19:37:39,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:37:39,402 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:39,402 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] [2024-10-11 19:37:39,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:37:39,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:37:39,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1227158705, now seen corresponding path program 1 times [2024-10-11 19:37:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890709001] [2024-10-11 19:37:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:39,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:39,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:39,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890709001] [2024-10-11 19:37:39,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890709001] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:39,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:39,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:37:39,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955417064] [2024-10-11 19:37:39,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:39,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:37:39,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:39,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:37:39,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:37:39,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:37:39,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:39,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:39,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:37:39,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:39,574 INFO L124 PetriNetUnfolderBase]: 162/321 cut-off events. [2024-10-11 19:37:39,575 INFO L125 PetriNetUnfolderBase]: For 362/454 co-relation queries the response was YES. [2024-10-11 19:37:39,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 321 events. 162/321 cut-off events. For 362/454 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1113 event pairs, 6 based on Foata normal form. 28/336 useless extension candidates. Maximal degree in co-relation 883. Up to 84 conditions per place. [2024-10-11 19:37:39,577 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 11 changer transitions 1/54 dead transitions. [2024-10-11 19:37:39,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 283 flow [2024-10-11 19:37:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:37:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:37:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2024-10-11 19:37:39,578 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-10-11 19:37:39,578 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 171 flow. Second operand 6 states and 166 transitions. [2024-10-11 19:37:39,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 283 flow [2024-10-11 19:37:39,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 54 transitions, 242 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-10-11 19:37:39,579 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 169 flow [2024-10-11 19:37:39,579 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2024-10-11 19:37:39,580 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-10-11 19:37:39,580 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 169 flow [2024-10-11 19:37:39,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:37:39,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:39,580 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] [2024-10-11 19:37:39,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 19:37:39,580 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:37:39,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:39,581 INFO L85 PathProgramCache]: Analyzing trace with hash 2140280908, now seen corresponding path program 1 times [2024-10-11 19:37:39,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:39,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074988389] [2024-10-11 19:37:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:39,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:39,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074988389] [2024-10-11 19:37:39,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074988389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:39,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:39,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:37:39,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874728850] [2024-10-11 19:37:39,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:39,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:37:39,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:39,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:37:39,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:37:39,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-11 19:37:39,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-10-11 19:37:39,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:39,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-11 19:37:39,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:39,796 INFO L124 PetriNetUnfolderBase]: 123/273 cut-off events. [2024-10-11 19:37:39,796 INFO L125 PetriNetUnfolderBase]: For 202/206 co-relation queries the response was YES. [2024-10-11 19:37:39,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 273 events. 123/273 cut-off events. For 202/206 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1028 event pairs, 28 based on Foata normal form. 8/261 useless extension candidates. Maximal degree in co-relation 688. Up to 113 conditions per place. [2024-10-11 19:37:39,797 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-10-11 19:37:39,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 48 transitions, 251 flow [2024-10-11 19:37:39,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:37:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:37:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 151 transitions. [2024-10-11 19:37:39,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5016611295681063 [2024-10-11 19:37:39,798 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 169 flow. Second operand 7 states and 151 transitions. [2024-10-11 19:37:39,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 48 transitions, 251 flow [2024-10-11 19:37:39,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 195 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-10-11 19:37:39,799 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-10-11 19:37:39,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-10-11 19:37:39,800 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2024-10-11 19:37:39,800 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-10-11 19:37:39,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-10-11 19:37:39,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-11 19:37:39,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-11 19:37:39,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-11 19:37:39,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-11 19:37:39,803 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-11 19:37:39,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 19:37:39,804 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:37:39,806 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:37:39,806 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:37:39,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:37:39 BasicIcfg [2024-10-11 19:37:39,810 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:37:39,811 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:37:39,811 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:37:39,811 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:37:39,811 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:37:34" (3/4) ... [2024-10-11 19:37:39,813 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:37:39,815 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 19:37:39,816 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 19:37:39,816 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 19:37:39,822 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-11 19:37:39,823 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-11 19:37:39,823 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 19:37:39,823 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 19:37:39,898 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:37:39,898 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:37:39,899 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:37:39,899 INFO L158 Benchmark]: Toolchain (without parser) took 5896.93ms. Allocated memory was 138.4MB in the beginning and 320.9MB in the end (delta: 182.5MB). Free memory was 65.6MB in the beginning and 237.1MB in the end (delta: -171.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-10-11 19:37:39,899 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 138.4MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:37:39,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.04ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 65.4MB in the beginning and 161.9MB in the end (delta: -96.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-11 19:37:39,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.85ms. Allocated memory is still 201.3MB. Free memory was 161.9MB in the beginning and 159.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:37:39,900 INFO L158 Benchmark]: Boogie Preprocessor took 40.45ms. Allocated memory is still 201.3MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:37:39,900 INFO L158 Benchmark]: RCFGBuilder took 444.95ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 137.8MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 19:37:39,900 INFO L158 Benchmark]: TraceAbstraction took 4814.49ms. Allocated memory was 201.3MB in the beginning and 320.9MB in the end (delta: 119.5MB). Free memory was 137.8MB in the beginning and 241.3MB in the end (delta: -103.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-10-11 19:37:39,900 INFO L158 Benchmark]: Witness Printer took 88.01ms. Allocated memory is still 320.9MB. Free memory was 241.3MB in the beginning and 237.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 19:37:39,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 138.4MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.04ms. Allocated memory was 138.4MB in the beginning and 201.3MB in the end (delta: 62.9MB). Free memory was 65.4MB in the beginning and 161.9MB in the end (delta: -96.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.85ms. Allocated memory is still 201.3MB. Free memory was 161.9MB in the beginning and 159.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.45ms. Allocated memory is still 201.3MB. Free memory was 159.8MB in the beginning and 157.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 444.95ms. Allocated memory is still 201.3MB. Free memory was 157.7MB in the beginning and 137.8MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4814.49ms. Allocated memory was 201.3MB in the beginning and 320.9MB in the end (delta: 119.5MB). Free memory was 137.8MB in the beginning and 241.3MB in the end (delta: -103.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 88.01ms. Allocated memory is still 320.9MB. Free memory was 241.3MB in the beginning and 237.1MB 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: 776]: 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, 66 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: 4.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 491 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 448 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1135 IncrementalHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 58 mSDtfsCounter, 1135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=4, InterpolantAutomatonStates: 86, 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, 1.4s InterpolantComputationTime, 258 NumberOfCodeBlocks, 258 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 246 ConstructedInterpolants, 0 QuantifiedInterpolants, 1016 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 19:37:39,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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