./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc 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/popl20-counter-determinism.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 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:49:35,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:49:35,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:49:35,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:49:35,769 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:49:35,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:49:35,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:49:35,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:49:35,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:49:35,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:49:35,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:49:35,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:49:35,799 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:49:35,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:49:35,800 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:49:35,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:49:35,801 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:49:35,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:49:35,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:49:35,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:49:35,802 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:49:35,803 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:49:35,803 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:49:35,803 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:49:35,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:49:35,804 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:49:35,804 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:49:35,804 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:49:35,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:49:35,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:49:35,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:49:35,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:49:35,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:49:35,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:49:35,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:49:35,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:49:35,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:49:35,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:49:35,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:49:35,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:49:35,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:49:35,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:49:35,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 981eae178b9cad0bb64b87dda8360f4f1e2e23d7b9d396f9db2ad5a6977098c4 [2024-11-19 09:49:36,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:49:36,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:49:36,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:49:36,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:49:36,062 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:49:36,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-11-19 09:49:37,406 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:49:37,593 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:49:37,594 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-counter-determinism.wvr.c [2024-11-19 09:49:37,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146e389d3/7c432034b8474546b547e81b90f20bad/FLAG2dab852d0 [2024-11-19 09:49:37,614 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146e389d3/7c432034b8474546b547e81b90f20bad [2024-11-19 09:49:37,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:49:37,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:49:37,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:49:37,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:49:37,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:49:37,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12527925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37, skipping insertion in model container [2024-11-19 09:49:37,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,642 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:49:37,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:49:37,792 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:49:37,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:49:37,831 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:49:37,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37 WrapperNode [2024-11-19 09:49:37,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:49:37,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:49:37,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:49:37,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:49:37,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,876 INFO L138 Inliner]: procedures = 20, calls = 14, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 96 [2024-11-19 09:49:37,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:49:37,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:49:37,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:49:37,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:49:37,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,923 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]. [2024-11-19 09:49:37,924 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,924 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,934 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:49:37,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:49:37,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:49:37,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:49:37,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (1/1) ... [2024-11-19 09:49:37,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:49:37,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:49:37,983 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) [2024-11-19 09:49:37,984 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 [2024-11-19 09:49:38,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:49:38,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:49:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:49:38,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:49:38,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:49:38,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 09:49:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 09:49:38,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 09:49:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 09:49:38,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:49:38,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:49:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:49:38,016 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:49:38,102 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:49:38,105 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:49:38,266 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:49:38,266 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:49:38,397 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:49:38,397 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 09:49:38,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:49:38 BoogieIcfgContainer [2024-11-19 09:49:38,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:49:38,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:49:38,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:49:38,404 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:49:38,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:49:37" (1/3) ... [2024-11-19 09:49:38,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff51017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:49:38, skipping insertion in model container [2024-11-19 09:49:38,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:49:37" (2/3) ... [2024-11-19 09:49:38,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff51017 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:49:38, skipping insertion in model container [2024-11-19 09:49:38,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:49:38" (3/3) ... [2024-11-19 09:49:38,408 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2024-11-19 09:49:38,421 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:49:38,422 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:49:38,422 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:49:38,466 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 09:49:38,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 112 flow [2024-11-19 09:49:38,516 INFO L124 PetriNetUnfolderBase]: 4/38 cut-off events. [2024-11-19 09:49:38,516 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:49:38,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 38 events. 4/38 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-19 09:49:38,519 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 112 flow [2024-11-19 09:49:38,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 37 transitions, 98 flow [2024-11-19 09:49:38,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:49:38,534 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;@37ac6613, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:49:38,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 09:49:38,545 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:49:38,546 INFO L124 PetriNetUnfolderBase]: 4/34 cut-off events. [2024-11-19 09:49:38,546 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:49:38,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:49:38,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:49:38,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:49:38,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:49:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash 40613773, now seen corresponding path program 1 times [2024-11-19 09:49:38,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:49:38,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888943170] [2024-11-19 09:49:38,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:49:38,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:49:38,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:49:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:38,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:49:38,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888943170] [2024-11-19 09:49:38,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888943170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:49:38,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:49:38,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:49:38,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247339725] [2024-11-19 09:49:38,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:49:38,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:49:38,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:49:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:49:38,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:49:38,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-19 09:49:38,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 98 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-19 09:49:38,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:49:38,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-19 09:49:38,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:49:39,318 INFO L124 PetriNetUnfolderBase]: 4206/5682 cut-off events. [2024-11-19 09:49:39,318 INFO L125 PetriNetUnfolderBase]: For 465/465 co-relation queries the response was YES. [2024-11-19 09:49:39,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11670 conditions, 5682 events. 4206/5682 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 23972 event pairs, 1080 based on Foata normal form. 2/5293 useless extension candidates. Maximal degree in co-relation 10307. Up to 4714 conditions per place. [2024-11-19 09:49:39,346 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 48 selfloop transitions, 3 changer transitions 2/56 dead transitions. [2024-11-19 09:49:39,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 56 transitions, 263 flow [2024-11-19 09:49:39,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:49:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:49:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2024-11-19 09:49:39,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2024-11-19 09:49:39,357 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 98 flow. Second operand 3 states and 81 transitions. [2024-11-19 09:49:39,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 56 transitions, 263 flow [2024-11-19 09:49:39,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 56 transitions, 233 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-19 09:49:39,370 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 101 flow [2024-11-19 09:49:39,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2024-11-19 09:49:39,376 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2024-11-19 09:49:39,376 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 101 flow [2024-11-19 09:49:39,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2024-11-19 09:49:39,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:49:39,377 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] [2024-11-19 09:49:39,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:49:39,378 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:49:39,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:49:39,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1127953092, now seen corresponding path program 1 times [2024-11-19 09:49:39,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:49:39,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304503189] [2024-11-19 09:49:39,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:49:39,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:49:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:49:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:39,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:49:39,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304503189] [2024-11-19 09:49:39,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304503189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:49:39,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:49:39,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:49:39,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163142590] [2024-11-19 09:49:39,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:49:39,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:49:39,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:49:39,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:49:39,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:49:39,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 09:49:39,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:49:39,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:49:39,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 09:49:39,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:49:40,423 INFO L124 PetriNetUnfolderBase]: 9567/12563 cut-off events. [2024-11-19 09:49:40,425 INFO L125 PetriNetUnfolderBase]: For 1508/1508 co-relation queries the response was YES. [2024-11-19 09:49:40,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27973 conditions, 12563 events. 9567/12563 cut-off events. For 1508/1508 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 59440 event pairs, 3002 based on Foata normal form. 0/11896 useless extension candidates. Maximal degree in co-relation 3413. Up to 6920 conditions per place. [2024-11-19 09:49:40,475 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 94 selfloop transitions, 10 changer transitions 0/106 dead transitions. [2024-11-19 09:49:40,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 106 transitions, 491 flow [2024-11-19 09:49:40,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:49:40,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:49:40,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-11-19 09:49:40,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-19 09:49:40,479 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 101 flow. Second operand 5 states and 133 transitions. [2024-11-19 09:49:40,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 106 transitions, 491 flow [2024-11-19 09:49:40,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 106 transitions, 483 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:49:40,483 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 161 flow [2024-11-19 09:49:40,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2024-11-19 09:49:40,485 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-11-19 09:49:40,485 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 161 flow [2024-11-19 09:49:40,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:49:40,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:49:40,485 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] [2024-11-19 09:49:40,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:49:40,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:49:40,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:49:40,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1995278604, now seen corresponding path program 2 times [2024-11-19 09:49:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:49:40,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561986927] [2024-11-19 09:49:40,487 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:49:40,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:49:40,508 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:49:40,508 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:49:40,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:40,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:49:40,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561986927] [2024-11-19 09:49:40,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561986927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:49:40,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037578459] [2024-11-19 09:49:40,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:49:40,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:49:40,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:49:40,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:49:40,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:49:40,666 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:49:40,667 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:49:40,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 09:49:40,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:49:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:40,733 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:49:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:40,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037578459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:49:40,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:49:40,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-19 09:49:40,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540724975] [2024-11-19 09:49:40,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:49:40,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 09:49:40,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:49:40,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 09:49:40,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 09:49:40,773 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2024-11-19 09:49:40,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 161 flow. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-19 09:49:40,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:49:40,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2024-11-19 09:49:40,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:49:42,239 INFO L124 PetriNetUnfolderBase]: 17600/22965 cut-off events. [2024-11-19 09:49:42,240 INFO L125 PetriNetUnfolderBase]: For 9250/9250 co-relation queries the response was YES. [2024-11-19 09:49:42,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59936 conditions, 22965 events. 17600/22965 cut-off events. For 9250/9250 co-relation queries the response was YES. Maximal size of possible extension queue 790. Compared 112612 event pairs, 1213 based on Foata normal form. 0/22081 useless extension candidates. Maximal degree in co-relation 33397. Up to 4329 conditions per place. [2024-11-19 09:49:42,362 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 254 selfloop transitions, 38 changer transitions 0/293 dead transitions. [2024-11-19 09:49:42,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 293 transitions, 1509 flow [2024-11-19 09:49:42,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 09:49:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 09:49:42,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 352 transitions. [2024-11-19 09:49:42,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5986394557823129 [2024-11-19 09:49:42,364 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 161 flow. Second operand 14 states and 352 transitions. [2024-11-19 09:49:42,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 293 transitions, 1509 flow [2024-11-19 09:49:42,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 293 transitions, 1509 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:49:42,376 INFO L231 Difference]: Finished difference. Result has 63 places, 78 transitions, 387 flow [2024-11-19 09:49:42,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=387, PETRI_PLACES=63, PETRI_TRANSITIONS=78} [2024-11-19 09:49:42,379 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2024-11-19 09:49:42,379 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 78 transitions, 387 flow [2024-11-19 09:49:42,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-19 09:49:42,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:49:42,379 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] [2024-11-19 09:49:42,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 09:49:42,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:49:42,581 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:49:42,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:49:42,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1973583774, now seen corresponding path program 3 times [2024-11-19 09:49:42,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:49:42,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20246138] [2024-11-19 09:49:42,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:49:42,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:49:42,608 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:49:42,608 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:49:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:42,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:49:42,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20246138] [2024-11-19 09:49:42,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20246138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:49:42,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:49:42,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:49:42,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871921103] [2024-11-19 09:49:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:49:42,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:49:42,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:49:42,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:49:42,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:49:42,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 09:49:42,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 78 transitions, 387 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:49:42,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:49:42,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 09:49:42,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:49:44,648 INFO L124 PetriNetUnfolderBase]: 27170/35373 cut-off events. [2024-11-19 09:49:44,649 INFO L125 PetriNetUnfolderBase]: For 45616/45921 co-relation queries the response was YES. [2024-11-19 09:49:44,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110907 conditions, 35373 events. 27170/35373 cut-off events. For 45616/45921 co-relation queries the response was YES. Maximal size of possible extension queue 1305. Compared 187262 event pairs, 7969 based on Foata normal form. 225/35299 useless extension candidates. Maximal degree in co-relation 83136. Up to 16738 conditions per place. [2024-11-19 09:49:44,857 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 170 selfloop transitions, 10 changer transitions 0/189 dead transitions. [2024-11-19 09:49:44,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 189 transitions, 1264 flow [2024-11-19 09:49:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:49:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:49:44,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-11-19 09:49:44,860 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-19 09:49:44,860 INFO L175 Difference]: Start difference. First operand has 63 places, 78 transitions, 387 flow. Second operand 5 states and 132 transitions. [2024-11-19 09:49:44,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 189 transitions, 1264 flow [2024-11-19 09:49:44,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 189 transitions, 1264 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:49:45,001 INFO L231 Difference]: Finished difference. Result has 70 places, 84 transitions, 479 flow [2024-11-19 09:49:45,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=479, PETRI_PLACES=70, PETRI_TRANSITIONS=84} [2024-11-19 09:49:45,001 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2024-11-19 09:49:45,002 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 84 transitions, 479 flow [2024-11-19 09:49:45,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:49:45,002 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:49:45,002 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] [2024-11-19 09:49:45,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:49:45,005 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:49:45,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:49:45,006 INFO L85 PathProgramCache]: Analyzing trace with hash 459858204, now seen corresponding path program 1 times [2024-11-19 09:49:45,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:49:45,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855465539] [2024-11-19 09:49:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:49:45,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:49:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:49:45,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:45,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:49:45,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855465539] [2024-11-19 09:49:45,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855465539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:49:45,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:49:45,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:49:45,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691541221] [2024-11-19 09:49:45,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:49:45,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:49:45,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:49:45,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:49:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:49:45,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 09:49:45,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 84 transitions, 479 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:49:45,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:49:45,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 09:49:45,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:49:46,913 INFO L124 PetriNetUnfolderBase]: 24745/32502 cut-off events. [2024-11-19 09:49:46,914 INFO L125 PetriNetUnfolderBase]: For 53266/53476 co-relation queries the response was YES. [2024-11-19 09:49:46,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106473 conditions, 32502 events. 24745/32502 cut-off events. For 53266/53476 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 169242 event pairs, 7886 based on Foata normal form. 36/32460 useless extension candidates. Maximal degree in co-relation 83012. Up to 16361 conditions per place. [2024-11-19 09:49:47,230 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 106 selfloop transitions, 21 changer transitions 15/146 dead transitions. [2024-11-19 09:49:47,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 146 transitions, 998 flow [2024-11-19 09:49:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:49:47,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:49:47,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-19 09:49:47,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6238095238095238 [2024-11-19 09:49:47,234 INFO L175 Difference]: Start difference. First operand has 70 places, 84 transitions, 479 flow. Second operand 5 states and 131 transitions. [2024-11-19 09:49:47,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 146 transitions, 998 flow [2024-11-19 09:49:47,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 146 transitions, 978 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-19 09:49:47,498 INFO L231 Difference]: Finished difference. Result has 75 places, 84 transitions, 527 flow [2024-11-19 09:49:47,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=527, PETRI_PLACES=75, PETRI_TRANSITIONS=84} [2024-11-19 09:49:47,499 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2024-11-19 09:49:47,499 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 84 transitions, 527 flow [2024-11-19 09:49:47,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:49:47,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:49:47,500 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] [2024-11-19 09:49:47,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:49:47,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:49:47,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:49:47,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1231208400, now seen corresponding path program 2 times [2024-11-19 09:49:47,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:49:47,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405797252] [2024-11-19 09:49:47,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:49:47,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:49:47,509 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:49:47,509 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:49:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:47,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:49:47,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405797252] [2024-11-19 09:49:47,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405797252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:49:47,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679601948] [2024-11-19 09:49:47,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:49:47,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:49:47,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:49:47,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:49:47,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:49:47,605 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:49:47,606 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:49:47,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 09:49:47,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:49:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:47,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:49:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:47,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679601948] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:49:47,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:49:47,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-19 09:49:47,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767642754] [2024-11-19 09:49:47,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:49:47,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:49:47,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:49:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:49:47,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:49:47,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 09:49:47,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 84 transitions, 527 flow. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-19 09:49:47,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:49:47,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 09:49:47,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:49:51,544 INFO L124 PetriNetUnfolderBase]: 46301/60524 cut-off events. [2024-11-19 09:49:51,545 INFO L125 PetriNetUnfolderBase]: For 117897/118198 co-relation queries the response was YES. [2024-11-19 09:49:51,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199999 conditions, 60524 events. 46301/60524 cut-off events. For 117897/118198 co-relation queries the response was YES. Maximal size of possible extension queue 1911. Compared 328724 event pairs, 2301 based on Foata normal form. 1311/61781 useless extension candidates. Maximal degree in co-relation 152734. Up to 13057 conditions per place. [2024-11-19 09:49:51,966 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 444 selfloop transitions, 67 changer transitions 4/519 dead transitions. [2024-11-19 09:49:51,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 519 transitions, 4445 flow [2024-11-19 09:49:51,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 09:49:51,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 09:49:51,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 338 transitions. [2024-11-19 09:49:51,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5748299319727891 [2024-11-19 09:49:51,968 INFO L175 Difference]: Start difference. First operand has 75 places, 84 transitions, 527 flow. Second operand 14 states and 338 transitions. [2024-11-19 09:49:51,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 519 transitions, 4445 flow [2024-11-19 09:49:53,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 519 transitions, 4189 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-11-19 09:49:53,389 INFO L231 Difference]: Finished difference. Result has 91 places, 141 transitions, 1012 flow [2024-11-19 09:49:53,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1012, PETRI_PLACES=91, PETRI_TRANSITIONS=141} [2024-11-19 09:49:53,390 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 45 predicate places. [2024-11-19 09:49:53,390 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 141 transitions, 1012 flow [2024-11-19 09:49:53,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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) [2024-11-19 09:49:53,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:49:53,391 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] [2024-11-19 09:49:53,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 09:49:53,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 09:49:53,591 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:49:53,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:49:53,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1970324260, now seen corresponding path program 4 times [2024-11-19 09:49:53,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:49:53,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401922045] [2024-11-19 09:49:53,592 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:49:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:49:53,600 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:49:53,600 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:49:53,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:49:53,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:49:53,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401922045] [2024-11-19 09:49:53,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401922045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:49:53,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:49:53,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:49:53,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266814848] [2024-11-19 09:49:53,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:49:53,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:49:53,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:49:53,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:49:53,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:49:53,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2024-11-19 09:49:53,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 141 transitions, 1012 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-11-19 09:49:53,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:49:53,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2024-11-19 09:49:53,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:49:58,348 INFO L124 PetriNetUnfolderBase]: 53407/69446 cut-off events. [2024-11-19 09:49:58,349 INFO L125 PetriNetUnfolderBase]: For 190551/190551 co-relation queries the response was YES. [2024-11-19 09:49:58,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267350 conditions, 69446 events. 53407/69446 cut-off events. For 190551/190551 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 366369 event pairs, 21314 based on Foata normal form. 32/69478 useless extension candidates. Maximal degree in co-relation 232910. Up to 39046 conditions per place. [2024-11-19 09:49:58,934 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 182 selfloop transitions, 34 changer transitions 18/235 dead transitions. [2024-11-19 09:49:58,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 235 transitions, 2117 flow [2024-11-19 09:49:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:49:58,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:49:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-19 09:49:58,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-19 09:49:58,940 INFO L175 Difference]: Start difference. First operand has 91 places, 141 transitions, 1012 flow. Second operand 5 states and 120 transitions. [2024-11-19 09:49:58,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 235 transitions, 2117 flow [2024-11-19 09:50:04,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 235 transitions, 2099 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-19 09:50:04,152 INFO L231 Difference]: Finished difference. Result has 97 places, 141 transitions, 1078 flow [2024-11-19 09:50:04,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1078, PETRI_PLACES=97, PETRI_TRANSITIONS=141} [2024-11-19 09:50:04,152 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 51 predicate places. [2024-11-19 09:50:04,153 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 141 transitions, 1078 flow [2024-11-19 09:50:04,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-11-19 09:50:04,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:50:04,153 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] [2024-11-19 09:50:04,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:50:04,153 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:50:04,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:50:04,154 INFO L85 PathProgramCache]: Analyzing trace with hash -129682204, now seen corresponding path program 3 times [2024-11-19 09:50:04,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:50:04,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021720296] [2024-11-19 09:50:04,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:50:04,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:50:04,162 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:50:04,162 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:50:04,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:50:04,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:50:04,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021720296] [2024-11-19 09:50:04,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021720296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:50:04,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:50:04,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 09:50:04,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855335521] [2024-11-19 09:50:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:50:04,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 09:50:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:50:04,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 09:50:04,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 09:50:04,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2024-11-19 09:50:04,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 141 transitions, 1078 flow. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-11-19 09:50:04,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:50:04,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2024-11-19 09:50:04,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:50:09,371 INFO L124 PetriNetUnfolderBase]: 57505/74816 cut-off events. [2024-11-19 09:50:09,371 INFO L125 PetriNetUnfolderBase]: For 216817/216817 co-relation queries the response was YES. [2024-11-19 09:50:09,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290689 conditions, 74816 events. 57505/74816 cut-off events. For 216817/216817 co-relation queries the response was YES. Maximal size of possible extension queue 2070. Compared 402214 event pairs, 5007 based on Foata normal form. 1320/76136 useless extension candidates. Maximal degree in co-relation 251754. Up to 20756 conditions per place. [2024-11-19 09:50:10,136 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 247 selfloop transitions, 102 changer transitions 7/357 dead transitions. [2024-11-19 09:50:10,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 357 transitions, 3168 flow [2024-11-19 09:50:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:50:10,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:50:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 224 transitions. [2024-11-19 09:50:10,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-19 09:50:10,138 INFO L175 Difference]: Start difference. First operand has 97 places, 141 transitions, 1078 flow. Second operand 9 states and 224 transitions. [2024-11-19 09:50:10,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 357 transitions, 3168 flow [2024-11-19 09:50:15,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 357 transitions, 3046 flow, removed 16 selfloop flow, removed 3 redundant places. [2024-11-19 09:50:15,303 INFO L231 Difference]: Finished difference. Result has 105 places, 182 transitions, 1698 flow [2024-11-19 09:50:15,303 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1002, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1698, PETRI_PLACES=105, PETRI_TRANSITIONS=182} [2024-11-19 09:50:15,304 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 59 predicate places. [2024-11-19 09:50:15,304 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 182 transitions, 1698 flow [2024-11-19 09:50:15,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-11-19 09:50:15,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:50:15,304 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] [2024-11-19 09:50:15,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:50:15,305 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:50:15,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:50:15,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1696157018, now seen corresponding path program 5 times [2024-11-19 09:50:15,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:50:15,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48585695] [2024-11-19 09:50:15,305 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:50:15,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:50:15,313 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:50:15,314 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:50:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:50:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:50:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48585695] [2024-11-19 09:50:15,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48585695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:50:15,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:50:15,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:50:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708533220] [2024-11-19 09:50:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:50:15,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:50:15,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:50:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:50:15,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:50:15,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2024-11-19 09:50:15,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 182 transitions, 1698 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:50:15,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:50:15,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2024-11-19 09:50:15,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:50:20,613 INFO L124 PetriNetUnfolderBase]: 57830/75770 cut-off events. [2024-11-19 09:50:20,614 INFO L125 PetriNetUnfolderBase]: For 306594/307700 co-relation queries the response was YES. [2024-11-19 09:50:20,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313942 conditions, 75770 events. 57830/75770 cut-off events. For 306594/307700 co-relation queries the response was YES. Maximal size of possible extension queue 2546. Compared 437961 event pairs, 6801 based on Foata normal form. 1406/77010 useless extension candidates. Maximal degree in co-relation 283224. Up to 24030 conditions per place. [2024-11-19 09:50:21,501 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 438 selfloop transitions, 55 changer transitions 1/518 dead transitions. [2024-11-19 09:50:21,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 518 transitions, 4928 flow [2024-11-19 09:50:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:50:21,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:50:21,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 229 transitions. [2024-11-19 09:50:21,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6058201058201058 [2024-11-19 09:50:21,504 INFO L175 Difference]: Start difference. First operand has 105 places, 182 transitions, 1698 flow. Second operand 9 states and 229 transitions. [2024-11-19 09:50:21,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 518 transitions, 4928 flow [2024-11-19 09:50:24,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 518 transitions, 4878 flow, removed 25 selfloop flow, removed 0 redundant places. [2024-11-19 09:50:24,461 INFO L231 Difference]: Finished difference. Result has 116 places, 212 transitions, 2096 flow [2024-11-19 09:50:24,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1676, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2096, PETRI_PLACES=116, PETRI_TRANSITIONS=212} [2024-11-19 09:50:24,463 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 70 predicate places. [2024-11-19 09:50:24,463 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 212 transitions, 2096 flow [2024-11-19 09:50:24,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-19 09:50:24,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:50:24,464 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] [2024-11-19 09:50:24,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 09:50:24,464 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:50:24,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:50:24,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1341302230, now seen corresponding path program 4 times [2024-11-19 09:50:24,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:50:24,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714353208] [2024-11-19 09:50:24,469 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:50:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:50:24,485 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:50:24,485 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:50:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:50:24,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:50:24,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714353208] [2024-11-19 09:50:24,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714353208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:50:24,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:50:24,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 09:50:24,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986333501] [2024-11-19 09:50:24,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:50:24,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 09:50:24,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:50:24,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 09:50:24,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 09:50:24,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 42 [2024-11-19 09:50:24,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 212 transitions, 2096 flow. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2024-11-19 09:50:24,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:50:24,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 42 [2024-11-19 09:50:24,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:50:31,933 INFO L124 PetriNetUnfolderBase]: 78340/101509 cut-off events. [2024-11-19 09:50:31,933 INFO L125 PetriNetUnfolderBase]: For 522688/522688 co-relation queries the response was YES. [2024-11-19 09:50:32,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460921 conditions, 101509 events. 78340/101509 cut-off events. For 522688/522688 co-relation queries the response was YES. Maximal size of possible extension queue 2824. Compared 558600 event pairs, 17887 based on Foata normal form. 286/101795 useless extension candidates. Maximal degree in co-relation 418892. Up to 59540 conditions per place. [2024-11-19 09:50:32,778 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 328 selfloop transitions, 58 changer transitions 2/389 dead transitions. [2024-11-19 09:50:32,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 389 transitions, 4464 flow [2024-11-19 09:50:32,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:50:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:50:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2024-11-19 09:50:32,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2024-11-19 09:50:32,779 INFO L175 Difference]: Start difference. First operand has 116 places, 212 transitions, 2096 flow. Second operand 5 states and 124 transitions. [2024-11-19 09:50:32,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 389 transitions, 4464 flow