./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:35:47,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:35:48,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:35:48,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:35:48,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:35:48,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:35:48,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:35:48,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:35:48,045 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:35:48,045 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:35:48,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:35:48,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:35:48,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:35:48,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:35:48,047 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:35:48,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:35:48,047 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:35:48,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:35:48,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:35:48,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:35:48,051 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:35:48,051 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:35:48,052 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:35:48,052 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:35:48,052 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:35:48,052 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:35:48,053 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:35:48,056 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:35:48,056 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:35:48,057 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:35:48,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:35:48,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:35:48,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:35:48,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:35:48,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:35:48,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:35:48,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:35:48,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:35:48,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:35:48,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:35:48,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:35:48,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:35:48,061 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 [2024-11-17 03:35:48,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:35:48,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:35:48,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:35:48,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:35:48,282 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:35:48,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2024-11-17 03:35:49,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:35:49,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:35:49,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2024-11-17 03:35:49,812 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd026229/395c3e27d833410ba076905807bc8c55/FLAG7c6c727fb [2024-11-17 03:35:50,191 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd026229/395c3e27d833410ba076905807bc8c55 [2024-11-17 03:35:50,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:35:50,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:35:50,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:35:50,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:35:50,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:35:50,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d34593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50, skipping insertion in model container [2024-11-17 03:35:50,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,218 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:35:50,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:35:50,426 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:35:50,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:35:50,476 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:35:50,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50 WrapperNode [2024-11-17 03:35:50,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:35:50,478 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:35:50,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:35:50,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:35:50,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,513 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 174 [2024-11-17 03:35:50,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:35:50,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:35:50,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:35:50,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:35:50,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,545 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:35:50,546 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,550 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:35:50,556 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:35:50,556 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:35:50,556 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:35:50,557 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (1/1) ... [2024-11-17 03:35:50,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:35:50,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:35:50,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:35:50,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:35:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:35:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 03:35:50,656 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 03:35:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 03:35:50,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 03:35:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 03:35:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 03:35:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-17 03:35:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-17 03:35:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:35:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:35:50,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:35:50,660 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:35:50,756 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:35:50,758 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:35:51,031 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:35:51,031 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:35:51,192 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:35:51,193 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:35:51,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:35:51 BoogieIcfgContainer [2024-11-17 03:35:51,195 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:35:51,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:35:51,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:35:51,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:35:51,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:35:50" (1/3) ... [2024-11-17 03:35:51,202 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c42ca6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:35:51, skipping insertion in model container [2024-11-17 03:35:51,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:50" (2/3) ... [2024-11-17 03:35:51,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c42ca6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:35:51, skipping insertion in model container [2024-11-17 03:35:51,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:35:51" (3/3) ... [2024-11-17 03:35:51,205 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2024-11-17 03:35:51,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:35:51,219 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:35:51,219 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:35:51,280 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 03:35:51,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 61 transitions, 150 flow [2024-11-17 03:35:51,338 INFO L124 PetriNetUnfolderBase]: 3/57 cut-off events. [2024-11-17 03:35:51,338 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:35:51,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 57 events. 3/57 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-17 03:35:51,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 61 transitions, 150 flow [2024-11-17 03:35:51,346 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 56 transitions, 136 flow [2024-11-17 03:35:51,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:35:51,362 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;@2149d3ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:35:51,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-17 03:35:51,376 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:35:51,379 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-17 03:35:51,379 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:35:51,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:51,380 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:51,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:35:51,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:51,386 INFO L85 PathProgramCache]: Analyzing trace with hash -999985068, now seen corresponding path program 1 times [2024-11-17 03:35:51,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:51,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414743279] [2024-11-17 03:35:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:51,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414743279] [2024-11-17 03:35:51,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414743279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:51,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:51,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:35:51,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001768696] [2024-11-17 03:35:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:51,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:35:51,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:51,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:35:51,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:35:51,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:35:51,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:51,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:51,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:35:51,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:53,544 INFO L124 PetriNetUnfolderBase]: 17631/24295 cut-off events. [2024-11-17 03:35:53,544 INFO L125 PetriNetUnfolderBase]: For 1407/1407 co-relation queries the response was YES. [2024-11-17 03:35:53,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48824 conditions, 24295 events. 17631/24295 cut-off events. For 1407/1407 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 142512 event pairs, 6173 based on Foata normal form. 2/23766 useless extension candidates. Maximal degree in co-relation 45533. Up to 14774 conditions per place. [2024-11-17 03:35:53,800 INFO L140 encePairwiseOnDemand]: 53/61 looper letters, 66 selfloop transitions, 6 changer transitions 1/84 dead transitions. [2024-11-17 03:35:53,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 356 flow [2024-11-17 03:35:53,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:35:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:35:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-11-17 03:35:53,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6721311475409836 [2024-11-17 03:35:53,813 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 136 flow. Second operand 3 states and 123 transitions. [2024-11-17 03:35:53,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 356 flow [2024-11-17 03:35:53,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 84 transitions, 328 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-17 03:35:53,840 INFO L231 Difference]: Finished difference. Result has 59 places, 57 transitions, 148 flow [2024-11-17 03:35:53,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2024-11-17 03:35:53,847 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -7 predicate places. [2024-11-17 03:35:53,848 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 148 flow [2024-11-17 03:35:53,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:53,848 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:53,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:53,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:35:53,849 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:35:53,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:53,850 INFO L85 PathProgramCache]: Analyzing trace with hash 989882062, now seen corresponding path program 1 times [2024-11-17 03:35:53,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:53,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539804016] [2024-11-17 03:35:53,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:53,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:53,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:53,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539804016] [2024-11-17 03:35:53,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539804016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:53,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:53,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:35:53,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303908088] [2024-11-17 03:35:53,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:53,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:35:53,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:53,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:35:53,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:35:53,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 61 [2024-11-17 03:35:53,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:53,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:53,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 61 [2024-11-17 03:35:53,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:55,911 INFO L124 PetriNetUnfolderBase]: 24981/33971 cut-off events. [2024-11-17 03:35:55,912 INFO L125 PetriNetUnfolderBase]: For 2785/2785 co-relation queries the response was YES. [2024-11-17 03:35:55,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72790 conditions, 33971 events. 24981/33971 cut-off events. For 2785/2785 co-relation queries the response was YES. Maximal size of possible extension queue 1144. Compared 196105 event pairs, 17656 based on Foata normal form. 0/33406 useless extension candidates. Maximal degree in co-relation 41625. Up to 29158 conditions per place. [2024-11-17 03:35:56,062 INFO L140 encePairwiseOnDemand]: 50/61 looper letters, 73 selfloop transitions, 8 changer transitions 0/86 dead transitions. [2024-11-17 03:35:56,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 386 flow [2024-11-17 03:35:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:35:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:35:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-17 03:35:56,065 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5901639344262295 [2024-11-17 03:35:56,066 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 148 flow. Second operand 3 states and 108 transitions. [2024-11-17 03:35:56,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 386 flow [2024-11-17 03:35:56,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 86 transitions, 377 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:35:56,077 INFO L231 Difference]: Finished difference. Result has 62 places, 61 transitions, 196 flow [2024-11-17 03:35:56,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=62, PETRI_TRANSITIONS=61} [2024-11-17 03:35:56,078 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2024-11-17 03:35:56,078 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 61 transitions, 196 flow [2024-11-17 03:35:56,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:56,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:56,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:56,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:35:56,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:35:56,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:56,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1286094588, now seen corresponding path program 1 times [2024-11-17 03:35:56,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:56,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357533314] [2024-11-17 03:35:56,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:56,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:56,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:56,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357533314] [2024-11-17 03:35:56,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357533314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:56,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:56,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:35:56,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342611295] [2024-11-17 03:35:56,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:56,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:35:56,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:56,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:35:56,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:35:56,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:35:56,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:56,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:56,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:35:56,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:59,025 INFO L124 PetriNetUnfolderBase]: 38605/55681 cut-off events. [2024-11-17 03:35:59,025 INFO L125 PetriNetUnfolderBase]: For 17476/17488 co-relation queries the response was YES. [2024-11-17 03:35:59,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126597 conditions, 55681 events. 38605/55681 cut-off events. For 17476/17488 co-relation queries the response was YES. Maximal size of possible extension queue 2452. Compared 394914 event pairs, 7848 based on Foata normal form. 398/54538 useless extension candidates. Maximal degree in co-relation 67862. Up to 19658 conditions per place. [2024-11-17 03:35:59,257 INFO L140 encePairwiseOnDemand]: 49/61 looper letters, 140 selfloop transitions, 27 changer transitions 3/184 dead transitions. [2024-11-17 03:35:59,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 184 transitions, 885 flow [2024-11-17 03:35:59,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:35:59,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:35:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 248 transitions. [2024-11-17 03:35:59,263 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6775956284153005 [2024-11-17 03:35:59,265 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 196 flow. Second operand 6 states and 248 transitions. [2024-11-17 03:35:59,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 184 transitions, 885 flow [2024-11-17 03:35:59,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 184 transitions, 853 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:35:59,372 INFO L231 Difference]: Finished difference. Result has 68 places, 85 transitions, 344 flow [2024-11-17 03:35:59,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=68, PETRI_TRANSITIONS=85} [2024-11-17 03:35:59,374 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 2 predicate places. [2024-11-17 03:35:59,374 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 85 transitions, 344 flow [2024-11-17 03:35:59,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:59,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:59,375 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:59,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:35:59,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:35:59,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash 553192726, now seen corresponding path program 2 times [2024-11-17 03:35:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:59,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083855890] [2024-11-17 03:35:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:59,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:59,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:59,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083855890] [2024-11-17 03:35:59,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083855890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:59,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:59,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:35:59,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163490882] [2024-11-17 03:35:59,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:59,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:35:59,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:59,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:35:59,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:35:59,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:35:59,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 85 transitions, 344 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:35:59,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:59,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:35:59,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:02,744 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([434] L56-3-->L56: Formula: (and (= v_~s~0_30 (+ |v_thread2Thread1of1ForFork3_#t~post4#1_1| 1)) (= v_~s~0_31 |v_thread2Thread1of1ForFork3_#t~post4#1_1|)) InVars {~s~0=v_~s~0_31} OutVars{thread2Thread1of1ForFork3_#t~post4#1=|v_thread2Thread1of1ForFork3_#t~post4#1_1|, ~s~0=v_~s~0_30} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_#t~post4#1, ~s~0][78], [Black: 78#true, 27#L66-3true, 42#L56true, 9#L100-1true, 85#(<= ~s~0 ~t~0), 29#thread4EXITtrue, 62#L45-1true, Black: 90#(and (<= (+ 2 ~s~0) |thread3Thread1of1ForFork2_#t~post5#1|) (<= (+ 2 ~s~0) ~t~0)), Black: 76#(= (mod ~b~0 256) 0), Black: 86#(<= (+ ~s~0 1) ~t~0), 94#true]) [2024-11-17 03:36:02,744 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2024-11-17 03:36:02,744 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2024-11-17 03:36:02,745 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2024-11-17 03:36:02,745 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2024-11-17 03:36:02,745 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([425] L45-1-->L46-3: Formula: (= v_~x~0_12 0) InVars {} OutVars{~x~0=v_~x~0_12} AuxVars[] AssignedVars[~x~0][80], [5#L56-3true, Black: 78#true, 27#L66-3true, 9#L100-1true, 20#L46-3true, 29#thread4EXITtrue, 96#(<= ~s~0 ~t~0), 86#(<= (+ ~s~0 1) ~t~0), Black: 90#(and (<= (+ 2 ~s~0) |thread3Thread1of1ForFork2_#t~post5#1|) (<= (+ 2 ~s~0) ~t~0)), Black: 85#(<= ~s~0 ~t~0), Black: 76#(= (mod ~b~0 256) 0)]) [2024-11-17 03:36:02,745 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2024-11-17 03:36:02,745 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2024-11-17 03:36:02,745 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2024-11-17 03:36:02,745 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2024-11-17 03:36:03,127 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([434] L56-3-->L56: Formula: (and (= v_~s~0_30 (+ |v_thread2Thread1of1ForFork3_#t~post4#1_1| 1)) (= v_~s~0_31 |v_thread2Thread1of1ForFork3_#t~post4#1_1|)) InVars {~s~0=v_~s~0_31} OutVars{thread2Thread1of1ForFork3_#t~post4#1=|v_thread2Thread1of1ForFork3_#t~post4#1_1|, ~s~0=v_~s~0_30} AuxVars[] AssignedVars[thread2Thread1of1ForFork3_#t~post4#1, ~s~0][78], [Black: 78#true, 42#L56true, 27#L66-3true, 85#(<= ~s~0 ~t~0), 29#thread4EXITtrue, 62#L45-1true, Black: 90#(and (<= (+ 2 ~s~0) |thread3Thread1of1ForFork2_#t~post5#1|) (<= (+ 2 ~s~0) ~t~0)), Black: 76#(= (mod ~b~0 256) 0), Black: 86#(<= (+ ~s~0 1) ~t~0), 94#true, 55#L101true]) [2024-11-17 03:36:03,127 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2024-11-17 03:36:03,127 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2024-11-17 03:36:03,127 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2024-11-17 03:36:03,128 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2024-11-17 03:36:03,128 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([425] L45-1-->L46-3: Formula: (= v_~x~0_12 0) InVars {} OutVars{~x~0=v_~x~0_12} AuxVars[] AssignedVars[~x~0][80], [5#L56-3true, Black: 78#true, 27#L66-3true, 20#L46-3true, 29#thread4EXITtrue, 96#(<= ~s~0 ~t~0), 86#(<= (+ ~s~0 1) ~t~0), Black: 90#(and (<= (+ 2 ~s~0) |thread3Thread1of1ForFork2_#t~post5#1|) (<= (+ 2 ~s~0) ~t~0)), Black: 85#(<= ~s~0 ~t~0), Black: 76#(= (mod ~b~0 256) 0), 55#L101true]) [2024-11-17 03:36:03,128 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2024-11-17 03:36:03,128 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2024-11-17 03:36:03,128 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2024-11-17 03:36:03,128 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2024-11-17 03:36:03,566 INFO L124 PetriNetUnfolderBase]: 50152/73129 cut-off events. [2024-11-17 03:36:03,566 INFO L125 PetriNetUnfolderBase]: For 53225/53331 co-relation queries the response was YES. [2024-11-17 03:36:03,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195814 conditions, 73129 events. 50152/73129 cut-off events. For 53225/53331 co-relation queries the response was YES. Maximal size of possible extension queue 3205. Compared 546995 event pairs, 12325 based on Foata normal form. 642/71580 useless extension candidates. Maximal degree in co-relation 111792. Up to 27673 conditions per place. [2024-11-17 03:36:03,966 INFO L140 encePairwiseOnDemand]: 49/61 looper letters, 138 selfloop transitions, 32 changer transitions 5/189 dead transitions. [2024-11-17 03:36:03,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 189 transitions, 1096 flow [2024-11-17 03:36:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:36:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:36:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2024-11-17 03:36:03,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6688524590163935 [2024-11-17 03:36:03,968 INFO L175 Difference]: Start difference. First operand has 68 places, 85 transitions, 344 flow. Second operand 5 states and 204 transitions. [2024-11-17 03:36:03,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 189 transitions, 1096 flow [2024-11-17 03:36:04,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 189 transitions, 1096 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:36:04,037 INFO L231 Difference]: Finished difference. Result has 75 places, 111 transitions, 647 flow [2024-11-17 03:36:04,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=647, PETRI_PLACES=75, PETRI_TRANSITIONS=111} [2024-11-17 03:36:04,038 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 9 predicate places. [2024-11-17 03:36:04,038 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 111 transitions, 647 flow [2024-11-17 03:36:04,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:36:04,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:04,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:04,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:36:04,039 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:36:04,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:04,039 INFO L85 PathProgramCache]: Analyzing trace with hash -979971862, now seen corresponding path program 1 times [2024-11-17 03:36:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:04,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621959292] [2024-11-17 03:36:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:04,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:04,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:04,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621959292] [2024-11-17 03:36:04,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621959292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:04,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:04,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:36:04,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783075347] [2024-11-17 03:36:04,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:04,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:36:04,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:04,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:36:04,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:36:04,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:36:04,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 111 transitions, 647 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:36:04,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:04,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:36:04,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:08,424 INFO L124 PetriNetUnfolderBase]: 47278/68884 cut-off events. [2024-11-17 03:36:08,425 INFO L125 PetriNetUnfolderBase]: For 112236/112432 co-relation queries the response was YES. [2024-11-17 03:36:08,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215043 conditions, 68884 events. 47278/68884 cut-off events. For 112236/112432 co-relation queries the response was YES. Maximal size of possible extension queue 3035. Compared 511024 event pairs, 11052 based on Foata normal form. 548/67459 useless extension candidates. Maximal degree in co-relation 121859. Up to 27628 conditions per place. [2024-11-17 03:36:08,772 INFO L140 encePairwiseOnDemand]: 49/61 looper letters, 140 selfloop transitions, 37 changer transitions 1/192 dead transitions. [2024-11-17 03:36:08,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 192 transitions, 1311 flow [2024-11-17 03:36:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:36:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:36:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 203 transitions. [2024-11-17 03:36:08,775 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6655737704918033 [2024-11-17 03:36:08,775 INFO L175 Difference]: Start difference. First operand has 75 places, 111 transitions, 647 flow. Second operand 5 states and 203 transitions. [2024-11-17 03:36:08,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 192 transitions, 1311 flow [2024-11-17 03:36:08,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 192 transitions, 1311 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:36:08,893 INFO L231 Difference]: Finished difference. Result has 81 places, 117 transitions, 809 flow [2024-11-17 03:36:08,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=809, PETRI_PLACES=81, PETRI_TRANSITIONS=117} [2024-11-17 03:36:08,894 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2024-11-17 03:36:08,894 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 117 transitions, 809 flow [2024-11-17 03:36:08,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:36:08,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:08,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:08,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:36:08,895 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:36:08,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:08,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1927995288, now seen corresponding path program 3 times [2024-11-17 03:36:08,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:08,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529013513] [2024-11-17 03:36:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:08,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:09,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:09,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529013513] [2024-11-17 03:36:09,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529013513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:09,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:09,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:36:09,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376398894] [2024-11-17 03:36:09,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:09,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:36:09,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:36:09,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:36:09,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:36:09,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 117 transitions, 809 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:09,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:09,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:36:09,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:13,491 INFO L124 PetriNetUnfolderBase]: 46213/67254 cut-off events. [2024-11-17 03:36:13,491 INFO L125 PetriNetUnfolderBase]: For 160813/160997 co-relation queries the response was YES. [2024-11-17 03:36:13,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229564 conditions, 67254 events. 46213/67254 cut-off events. For 160813/160997 co-relation queries the response was YES. Maximal size of possible extension queue 3017. Compared 498650 event pairs, 8793 based on Foata normal form. 807/66006 useless extension candidates. Maximal degree in co-relation 133406. Up to 26581 conditions per place. [2024-11-17 03:36:13,831 INFO L140 encePairwiseOnDemand]: 49/61 looper letters, 139 selfloop transitions, 65 changer transitions 4/222 dead transitions. [2024-11-17 03:36:13,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 222 transitions, 1634 flow [2024-11-17 03:36:13,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:36:13,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:36:13,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 247 transitions. [2024-11-17 03:36:13,832 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.674863387978142 [2024-11-17 03:36:13,832 INFO L175 Difference]: Start difference. First operand has 81 places, 117 transitions, 809 flow. Second operand 6 states and 247 transitions. [2024-11-17 03:36:13,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 222 transitions, 1634 flow [2024-11-17 03:36:13,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 222 transitions, 1568 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-17 03:36:13,930 INFO L231 Difference]: Finished difference. Result has 84 places, 124 transitions, 978 flow [2024-11-17 03:36:13,931 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=978, PETRI_PLACES=84, PETRI_TRANSITIONS=124} [2024-11-17 03:36:13,931 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 18 predicate places. [2024-11-17 03:36:13,931 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 124 transitions, 978 flow [2024-11-17 03:36:13,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:13,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:13,932 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:13,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:36:13,932 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:36:13,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:13,932 INFO L85 PathProgramCache]: Analyzing trace with hash -965078708, now seen corresponding path program 4 times [2024-11-17 03:36:13,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:13,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164121722] [2024-11-17 03:36:13,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:13,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:14,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:14,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:14,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164121722] [2024-11-17 03:36:14,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164121722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:14,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:14,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:36:14,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244030256] [2024-11-17 03:36:14,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:14,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:36:14,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:14,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:36:14,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:36:14,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:36:14,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 124 transitions, 978 flow. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:14,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:14,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:36:14,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:18,744 INFO L124 PetriNetUnfolderBase]: 48431/70748 cut-off events. [2024-11-17 03:36:18,744 INFO L125 PetriNetUnfolderBase]: For 219713/219929 co-relation queries the response was YES. [2024-11-17 03:36:18,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251407 conditions, 70748 events. 48431/70748 cut-off events. For 219713/219929 co-relation queries the response was YES. Maximal size of possible extension queue 3146. Compared 531606 event pairs, 9377 based on Foata normal form. 917/69456 useless extension candidates. Maximal degree in co-relation 147013. Up to 26508 conditions per place. [2024-11-17 03:36:19,151 INFO L140 encePairwiseOnDemand]: 49/61 looper letters, 173 selfloop transitions, 79 changer transitions 3/269 dead transitions. [2024-11-17 03:36:19,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 269 transitions, 2109 flow [2024-11-17 03:36:19,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:36:19,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:36:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 317 transitions. [2024-11-17 03:36:19,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6495901639344263 [2024-11-17 03:36:19,154 INFO L175 Difference]: Start difference. First operand has 84 places, 124 transitions, 978 flow. Second operand 8 states and 317 transitions. [2024-11-17 03:36:19,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 269 transitions, 2109 flow [2024-11-17 03:36:19,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 269 transitions, 1980 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-17 03:36:19,529 INFO L231 Difference]: Finished difference. Result has 89 places, 138 transitions, 1232 flow [2024-11-17 03:36:19,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1232, PETRI_PLACES=89, PETRI_TRANSITIONS=138} [2024-11-17 03:36:19,530 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 23 predicate places. [2024-11-17 03:36:19,530 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 138 transitions, 1232 flow [2024-11-17 03:36:19,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:19,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:19,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:19,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:36:19,530 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:36:19,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:19,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1779022284, now seen corresponding path program 2 times [2024-11-17 03:36:19,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:19,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763192322] [2024-11-17 03:36:19,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:19,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:19,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:19,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763192322] [2024-11-17 03:36:19,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763192322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:19,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:19,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:36:19,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339870718] [2024-11-17 03:36:19,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:19,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:36:19,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:19,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:36:19,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:36:19,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:36:19,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 138 transitions, 1232 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:36:19,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:19,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:36:19,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:24,441 INFO L124 PetriNetUnfolderBase]: 45847/68584 cut-off events. [2024-11-17 03:36:24,442 INFO L125 PetriNetUnfolderBase]: For 251624/251664 co-relation queries the response was YES. [2024-11-17 03:36:24,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244016 conditions, 68584 events. 45847/68584 cut-off events. For 251624/251664 co-relation queries the response was YES. Maximal size of possible extension queue 3144. Compared 534186 event pairs, 11883 based on Foata normal form. 710/67516 useless extension candidates. Maximal degree in co-relation 145297. Up to 26486 conditions per place. [2024-11-17 03:36:24,763 INFO L140 encePairwiseOnDemand]: 49/61 looper letters, 139 selfloop transitions, 68 changer transitions 9/230 dead transitions. [2024-11-17 03:36:24,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 230 transitions, 2182 flow [2024-11-17 03:36:24,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:36:24,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:36:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 205 transitions. [2024-11-17 03:36:24,764 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6721311475409836 [2024-11-17 03:36:24,764 INFO L175 Difference]: Start difference. First operand has 89 places, 138 transitions, 1232 flow. Second operand 5 states and 205 transitions. [2024-11-17 03:36:24,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 230 transitions, 2182 flow [2024-11-17 03:36:25,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 230 transitions, 2057 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 03:36:25,063 INFO L231 Difference]: Finished difference. Result has 92 places, 152 transitions, 1507 flow [2024-11-17 03:36:25,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1507, PETRI_PLACES=92, PETRI_TRANSITIONS=152} [2024-11-17 03:36:25,065 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 26 predicate places. [2024-11-17 03:36:25,066 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 152 transitions, 1507 flow [2024-11-17 03:36:25,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:36:25,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:25,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:25,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:36:25,067 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:36:25,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:25,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1510199654, now seen corresponding path program 5 times [2024-11-17 03:36:25,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:25,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44029260] [2024-11-17 03:36:25,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:25,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:25,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:25,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44029260] [2024-11-17 03:36:25,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44029260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:25,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:25,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:36:25,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730458208] [2024-11-17 03:36:25,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:25,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:36:25,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:25,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:36:25,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:36:25,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:36:25,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 152 transitions, 1507 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:36:25,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:25,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:36:25,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:28,480 INFO L124 PetriNetUnfolderBase]: 30707/45691 cut-off events. [2024-11-17 03:36:28,481 INFO L125 PetriNetUnfolderBase]: For 167934/167990 co-relation queries the response was YES. [2024-11-17 03:36:28,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161948 conditions, 45691 events. 30707/45691 cut-off events. For 167934/167990 co-relation queries the response was YES. Maximal size of possible extension queue 2059. Compared 331307 event pairs, 8495 based on Foata normal form. 384/44993 useless extension candidates. Maximal degree in co-relation 113150. Up to 21532 conditions per place. [2024-11-17 03:36:28,721 INFO L140 encePairwiseOnDemand]: 49/61 looper letters, 129 selfloop transitions, 76 changer transitions 8/227 dead transitions. [2024-11-17 03:36:28,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 227 transitions, 2339 flow [2024-11-17 03:36:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:36:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:36:28,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 198 transitions. [2024-11-17 03:36:28,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6491803278688525 [2024-11-17 03:36:28,723 INFO L175 Difference]: Start difference. First operand has 92 places, 152 transitions, 1507 flow. Second operand 5 states and 198 transitions. [2024-11-17 03:36:28,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 227 transitions, 2339 flow [2024-11-17 03:36:28,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 227 transitions, 2253 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:36:28,856 INFO L231 Difference]: Finished difference. Result has 96 places, 158 transitions, 1749 flow [2024-11-17 03:36:28,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1749, PETRI_PLACES=96, PETRI_TRANSITIONS=158} [2024-11-17 03:36:28,857 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 30 predicate places. [2024-11-17 03:36:28,857 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 158 transitions, 1749 flow [2024-11-17 03:36:28,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 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) [2024-11-17 03:36:28,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:28,857 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:28,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:36:28,858 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:36:28,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:28,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1194375818, now seen corresponding path program 2 times [2024-11-17 03:36:28,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:28,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432718441] [2024-11-17 03:36:28,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:28,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:28,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:28,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432718441] [2024-11-17 03:36:28,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432718441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:28,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:28,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:36:28,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032146524] [2024-11-17 03:36:28,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:28,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:36:28,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:28,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:36:28,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:36:28,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 61 [2024-11-17 03:36:28,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 158 transitions, 1749 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:28,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:28,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 61 [2024-11-17 03:36:28,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand