./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.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-nonblocking-cntr-alt.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 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:53:09,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:53:09,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:53:09,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:53:09,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:53:09,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:53:09,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:53:09,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:53:09,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:53:09,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:53:09,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:53:09,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:53:09,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:53:09,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:53:09,244 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:53:09,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:53:09,245 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:53:09,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:53:09,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:53:09,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:53:09,246 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:53:09,252 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:53:09,252 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:53:09,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:53:09,253 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:53:09,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:53:09,253 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:53:09,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:53:09,253 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:53:09,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:53:09,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:53:09,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:53:09,254 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:53:09,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:53:09,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:53:09,255 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:53:09,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:53:09,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:53:09,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:53:09,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:53:09,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:53:09,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:53:09,258 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 [2024-11-19 09:53:09,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:53:09,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:53:09,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:53:09,538 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:53:09,538 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:53:09,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-11-19 09:53:10,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:53:11,151 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:53:11,151 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2024-11-19 09:53:11,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debb059e4/b6c6deda198f493889e12631d46f4c06/FLAGdcee28462 [2024-11-19 09:53:11,548 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/debb059e4/b6c6deda198f493889e12631d46f4c06 [2024-11-19 09:53:11,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:53:11,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:53:11,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:53:11,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:53:11,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:53:11,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f7e581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11, skipping insertion in model container [2024-11-19 09:53:11,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:53:11,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:53:11,814 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:53:11,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:53:11,858 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:53:11,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11 WrapperNode [2024-11-19 09:53:11,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:53:11,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:53:11,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:53:11,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:53:11,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,888 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2024-11-19 09:53:11,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:53:11,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:53:11,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:53:11,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:53:11,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,920 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 09:53:11,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:53:11,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:53:11,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:53:11,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:53:11,935 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (1/1) ... [2024-11-19 09:53:11,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:53:11,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:11,972 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 09:53:11,975 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 09:53:12,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:53:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:53:12,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:53:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:53:12,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:53:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:53:12,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 09:53:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 09:53:12,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:53:12,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:53:12,017 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 09:53:12,097 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:53:12,099 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:53:12,246 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:53:12,246 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:53:12,412 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:53:12,416 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-19 09:53:12,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:53:12 BoogieIcfgContainer [2024-11-19 09:53:12,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:53:12,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:53:12,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:53:12,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:53:12,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:53:11" (1/3) ... [2024-11-19 09:53:12,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6024810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:53:12, skipping insertion in model container [2024-11-19 09:53:12,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:53:11" (2/3) ... [2024-11-19 09:53:12,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6024810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:53:12, skipping insertion in model container [2024-11-19 09:53:12,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:53:12" (3/3) ... [2024-11-19 09:53:12,427 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2024-11-19 09:53:12,441 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:53:12,441 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:53:12,442 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:53:12,478 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 09:53:12,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 60 flow [2024-11-19 09:53:12,535 INFO L124 PetriNetUnfolderBase]: 2/21 cut-off events. [2024-11-19 09:53:12,536 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:53:12,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 14. Up to 2 conditions per place. [2024-11-19 09:53:12,538 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 23 transitions, 60 flow [2024-11-19 09:53:12,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 20 transitions, 52 flow [2024-11-19 09:53:12,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:53:12,560 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;@4362c09a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:53:12,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-19 09:53:12,568 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:53:12,569 INFO L124 PetriNetUnfolderBase]: 2/17 cut-off events. [2024-11-19 09:53:12,569 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 09:53:12,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:12,570 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:12,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:12,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1974399478, now seen corresponding path program 1 times [2024-11-19 09:53:12,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:12,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70742850] [2024-11-19 09:53:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:53:12,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:12,936 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 09:53:12,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:12,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70742850] [2024-11-19 09:53:12,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70742850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:53:12,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:53:12,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:53:12,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068825715] [2024-11-19 09:53:12,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:53:12,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:53:12,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:12,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:53:12,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:53:12,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-11-19 09:53:12,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 09:53:12,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:12,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-11-19 09:53:12,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:13,066 INFO L124 PetriNetUnfolderBase]: 61/123 cut-off events. [2024-11-19 09:53:13,069 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-19 09:53:13,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 123 events. 61/123 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 370 event pairs, 31 based on Foata normal form. 10/128 useless extension candidates. Maximal degree in co-relation 213. Up to 86 conditions per place. [2024-11-19 09:53:13,072 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 19 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2024-11-19 09:53:13,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 109 flow [2024-11-19 09:53:13,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:53:13,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:53:13,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2024-11-19 09:53:13,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2024-11-19 09:53:13,085 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 52 flow. Second operand 4 states and 48 transitions. [2024-11-19 09:53:13,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 109 flow [2024-11-19 09:53:13,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 25 transitions, 99 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 09:53:13,089 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 54 flow [2024-11-19 09:53:13,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2024-11-19 09:53:13,093 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-11-19 09:53:13,094 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 54 flow [2024-11-19 09:53:13,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 09:53:13,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:13,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:13,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:53:13,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:13,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1080039208, now seen corresponding path program 1 times [2024-11-19 09:53:13,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:13,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640568491] [2024-11-19 09:53:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:53:13,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:13,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 09:53:13,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:13,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640568491] [2024-11-19 09:53:13,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640568491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:53:13,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:53:13,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:53:13,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137913409] [2024-11-19 09:53:13,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:53:13,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:53:13,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:13,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:53:13,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:53:13,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 23 [2024-11-19 09:53:13,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 09:53:13,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:13,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 23 [2024-11-19 09:53:13,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:13,345 INFO L124 PetriNetUnfolderBase]: 89/174 cut-off events. [2024-11-19 09:53:13,347 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-19 09:53:13,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 174 events. 89/174 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 589 event pairs, 42 based on Foata normal form. 10/177 useless extension candidates. Maximal degree in co-relation 103. Up to 108 conditions per place. [2024-11-19 09:53:13,350 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 22 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-19 09:53:13,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 133 flow [2024-11-19 09:53:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 09:53:13,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 09:53:13,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2024-11-19 09:53:13,354 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5217391304347826 [2024-11-19 09:53:13,354 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 54 flow. Second operand 4 states and 48 transitions. [2024-11-19 09:53:13,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 133 flow [2024-11-19 09:53:13,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 28 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:53:13,357 INFO L231 Difference]: Finished difference. Result has 25 places, 20 transitions, 64 flow [2024-11-19 09:53:13,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=25, PETRI_TRANSITIONS=20} [2024-11-19 09:53:13,358 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2024-11-19 09:53:13,358 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 20 transitions, 64 flow [2024-11-19 09:53:13,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 09:53:13,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:13,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:13,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:53:13,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:13,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:13,360 INFO L85 PathProgramCache]: Analyzing trace with hash 978789089, now seen corresponding path program 1 times [2024-11-19 09:53:13,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:13,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175301223] [2024-11-19 09:53:13,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:53:13,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:13,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175301223] [2024-11-19 09:53:13,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175301223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:13,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333666987] [2024-11-19 09:53:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:53:13,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:13,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:13,761 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 09:53:13,762 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 09:53:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:13,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 09:53:13,840 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:14,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:14,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333666987] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:14,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:14,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-19 09:53:14,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733081848] [2024-11-19 09:53:14,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:14,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-19 09:53:14,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:14,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-19 09:53:14,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2024-11-19 09:53:14,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:14,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 64 flow. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:14,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:14,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:14,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:16,373 INFO L124 PetriNetUnfolderBase]: 565/989 cut-off events. [2024-11-19 09:53:16,373 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-11-19 09:53:16,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2452 conditions, 989 events. 565/989 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4577 event pairs, 13 based on Foata normal form. 2/991 useless extension candidates. Maximal degree in co-relation 881. Up to 211 conditions per place. [2024-11-19 09:53:16,381 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 123 selfloop transitions, 111 changer transitions 13/248 dead transitions. [2024-11-19 09:53:16,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 248 transitions, 1234 flow [2024-11-19 09:53:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-19 09:53:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2024-11-19 09:53:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 389 transitions. [2024-11-19 09:53:16,386 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4336677814938685 [2024-11-19 09:53:16,386 INFO L175 Difference]: Start difference. First operand has 25 places, 20 transitions, 64 flow. Second operand 39 states and 389 transitions. [2024-11-19 09:53:16,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 248 transitions, 1234 flow [2024-11-19 09:53:16,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 248 transitions, 1220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 09:53:16,396 INFO L231 Difference]: Finished difference. Result has 78 places, 149 transitions, 912 flow [2024-11-19 09:53:16,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=912, PETRI_PLACES=78, PETRI_TRANSITIONS=149} [2024-11-19 09:53:16,397 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 53 predicate places. [2024-11-19 09:53:16,398 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 149 transitions, 912 flow [2024-11-19 09:53:16,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:16,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:16,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:16,417 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 09:53:16,602 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 09:53:16,603 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:16,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:16,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1609550437, now seen corresponding path program 2 times [2024-11-19 09:53:16,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:16,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897558379] [2024-11-19 09:53:16,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:53:16,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:16,616 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:16,617 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:16,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:16,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897558379] [2024-11-19 09:53:16,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897558379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:16,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980103657] [2024-11-19 09:53:16,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:53:16,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:16,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:16,820 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 09:53:16,822 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 09:53:16,875 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:16,876 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:16,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 09:53:16,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:17,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:17,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1980103657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:17,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:17,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-19 09:53:17,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186699933] [2024-11-19 09:53:17,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:17,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:53:17,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:17,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:53:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=434, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:53:17,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:17,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 149 transitions, 912 flow. Second operand has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 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 09:53:17,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:17,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:17,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:18,629 INFO L124 PetriNetUnfolderBase]: 645/1190 cut-off events. [2024-11-19 09:53:18,630 INFO L125 PetriNetUnfolderBase]: For 2900/2900 co-relation queries the response was YES. [2024-11-19 09:53:18,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4721 conditions, 1190 events. 645/1190 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5819 event pairs, 31 based on Foata normal form. 3/1193 useless extension candidates. Maximal degree in co-relation 4650. Up to 359 conditions per place. [2024-11-19 09:53:18,642 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 128 selfloop transitions, 120 changer transitions 26/275 dead transitions. [2024-11-19 09:53:18,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 275 transitions, 2204 flow [2024-11-19 09:53:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 09:53:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-19 09:53:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 282 transitions. [2024-11-19 09:53:18,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43788819875776397 [2024-11-19 09:53:18,644 INFO L175 Difference]: Start difference. First operand has 78 places, 149 transitions, 912 flow. Second operand 28 states and 282 transitions. [2024-11-19 09:53:18,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 275 transitions, 2204 flow [2024-11-19 09:53:18,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 275 transitions, 2106 flow, removed 36 selfloop flow, removed 3 redundant places. [2024-11-19 09:53:18,677 INFO L231 Difference]: Finished difference. Result has 111 places, 181 transitions, 1440 flow [2024-11-19 09:53:18,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1440, PETRI_PLACES=111, PETRI_TRANSITIONS=181} [2024-11-19 09:53:18,678 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 86 predicate places. [2024-11-19 09:53:18,679 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 181 transitions, 1440 flow [2024-11-19 09:53:18,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 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 09:53:18,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:18,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:18,697 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 09:53:18,883 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,SelfDestructingSolverStorable3 [2024-11-19 09:53:18,884 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:18,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:18,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1294723099, now seen corresponding path program 3 times [2024-11-19 09:53:18,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:18,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792145715] [2024-11-19 09:53:18,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:53:18,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:18,894 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:53:18,895 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:19,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:19,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792145715] [2024-11-19 09:53:19,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792145715] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:19,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447352637] [2024-11-19 09:53:19,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:53:19,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:19,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:19,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:19,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 09:53:19,134 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:53:19,134 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:19,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 09:53:19,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:19,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:19,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:19,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447352637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:19,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:19,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-19 09:53:19,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406081946] [2024-11-19 09:53:19,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:19,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:53:19,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:19,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:53:19,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:53:19,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:19,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 181 transitions, 1440 flow. Second operand has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 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 09:53:19,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:19,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:19,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:21,173 INFO L124 PetriNetUnfolderBase]: 685/1262 cut-off events. [2024-11-19 09:53:21,173 INFO L125 PetriNetUnfolderBase]: For 5694/5694 co-relation queries the response was YES. [2024-11-19 09:53:21,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5914 conditions, 1262 events. 685/1262 cut-off events. For 5694/5694 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6249 event pairs, 28 based on Foata normal form. 8/1270 useless extension candidates. Maximal degree in co-relation 5819. Up to 376 conditions per place. [2024-11-19 09:53:21,186 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 140 selfloop transitions, 147 changer transitions 19/307 dead transitions. [2024-11-19 09:53:21,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 307 transitions, 2921 flow [2024-11-19 09:53:21,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-19 09:53:21,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2024-11-19 09:53:21,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 371 transitions. [2024-11-19 09:53:21,189 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4136008918617614 [2024-11-19 09:53:21,189 INFO L175 Difference]: Start difference. First operand has 111 places, 181 transitions, 1440 flow. Second operand 39 states and 371 transitions. [2024-11-19 09:53:21,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 307 transitions, 2921 flow [2024-11-19 09:53:21,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 307 transitions, 2755 flow, removed 47 selfloop flow, removed 10 redundant places. [2024-11-19 09:53:21,220 INFO L231 Difference]: Finished difference. Result has 152 places, 208 transitions, 2093 flow [2024-11-19 09:53:21,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1344, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=2093, PETRI_PLACES=152, PETRI_TRANSITIONS=208} [2024-11-19 09:53:21,223 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 127 predicate places. [2024-11-19 09:53:21,223 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 208 transitions, 2093 flow [2024-11-19 09:53:21,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 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 09:53:21,224 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:21,224 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:21,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 09:53:21,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:21,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:21,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:21,426 INFO L85 PathProgramCache]: Analyzing trace with hash -441805595, now seen corresponding path program 4 times [2024-11-19 09:53:21,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:21,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446577576] [2024-11-19 09:53:21,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:53:21,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:21,440 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:53:21,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:21,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:21,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446577576] [2024-11-19 09:53:21,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446577576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:21,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859772766] [2024-11-19 09:53:21,655 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:53:21,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:21,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:21,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:21,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 09:53:21,705 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:53:21,706 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:21,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:53:21,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:21,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:22,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859772766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:22,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:22,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 27 [2024-11-19 09:53:22,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442282109] [2024-11-19 09:53:22,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:22,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 09:53:22,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:22,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 09:53:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=616, Unknown=0, NotChecked=0, Total=756 [2024-11-19 09:53:22,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:22,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 208 transitions, 2093 flow. Second operand has 28 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 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 09:53:22,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:22,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:22,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:24,993 INFO L124 PetriNetUnfolderBase]: 1035/1859 cut-off events. [2024-11-19 09:53:24,994 INFO L125 PetriNetUnfolderBase]: For 13503/13503 co-relation queries the response was YES. [2024-11-19 09:53:25,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10351 conditions, 1859 events. 1035/1859 cut-off events. For 13503/13503 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9701 event pairs, 20 based on Foata normal form. 14/1873 useless extension candidates. Maximal degree in co-relation 10209. Up to 404 conditions per place. [2024-11-19 09:53:25,011 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 222 selfloop transitions, 303 changer transitions 28/554 dead transitions. [2024-11-19 09:53:25,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 554 transitions, 6295 flow [2024-11-19 09:53:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-19 09:53:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2024-11-19 09:53:25,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 701 transitions. [2024-11-19 09:53:25,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4010297482837529 [2024-11-19 09:53:25,017 INFO L175 Difference]: Start difference. First operand has 152 places, 208 transitions, 2093 flow. Second operand 76 states and 701 transitions. [2024-11-19 09:53:25,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 554 transitions, 6295 flow [2024-11-19 09:53:25,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 554 transitions, 5866 flow, removed 107 selfloop flow, removed 17 redundant places. [2024-11-19 09:53:25,092 INFO L231 Difference]: Finished difference. Result has 231 places, 374 transitions, 4866 flow [2024-11-19 09:53:25,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=1802, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=76, PETRI_FLOW=4866, PETRI_PLACES=231, PETRI_TRANSITIONS=374} [2024-11-19 09:53:25,093 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 206 predicate places. [2024-11-19 09:53:25,094 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 374 transitions, 4866 flow [2024-11-19 09:53:25,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 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 09:53:25,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:25,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:25,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 09:53:25,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:25,299 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:25,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:25,299 INFO L85 PathProgramCache]: Analyzing trace with hash -857397275, now seen corresponding path program 5 times [2024-11-19 09:53:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:25,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726930573] [2024-11-19 09:53:25,299 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:53:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:25,307 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:25,308 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:25,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:25,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726930573] [2024-11-19 09:53:25,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726930573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:25,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753673788] [2024-11-19 09:53:25,468 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:53:25,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:25,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:25,469 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:25,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 09:53:25,507 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:25,508 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:25,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 09:53:25,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:25,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:25,733 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:26,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:26,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753673788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:26,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:26,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 26 [2024-11-19 09:53:26,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212024436] [2024-11-19 09:53:26,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:26,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-19 09:53:26,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:26,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-19 09:53:26,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2024-11-19 09:53:26,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:26,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 374 transitions, 4866 flow. Second operand has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 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 09:53:26,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:26,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:26,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:27,183 INFO L124 PetriNetUnfolderBase]: 1234/2201 cut-off events. [2024-11-19 09:53:27,184 INFO L125 PetriNetUnfolderBase]: For 37447/37447 co-relation queries the response was YES. [2024-11-19 09:53:27,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15210 conditions, 2201 events. 1234/2201 cut-off events. For 37447/37447 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11990 event pairs, 33 based on Foata normal form. 10/2211 useless extension candidates. Maximal degree in co-relation 15009. Up to 1066 conditions per place. [2024-11-19 09:53:27,213 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 222 selfloop transitions, 298 changer transitions 27/548 dead transitions. [2024-11-19 09:53:27,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 548 transitions, 8066 flow [2024-11-19 09:53:27,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-19 09:53:27,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-19 09:53:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 269 transitions. [2024-11-19 09:53:27,217 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41770186335403725 [2024-11-19 09:53:27,217 INFO L175 Difference]: Start difference. First operand has 231 places, 374 transitions, 4866 flow. Second operand 28 states and 269 transitions. [2024-11-19 09:53:27,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 548 transitions, 8066 flow [2024-11-19 09:53:27,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 548 transitions, 6844 flow, removed 398 selfloop flow, removed 24 redundant places. [2024-11-19 09:53:27,444 INFO L231 Difference]: Finished difference. Result has 236 places, 469 transitions, 6371 flow [2024-11-19 09:53:27,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=3856, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6371, PETRI_PLACES=236, PETRI_TRANSITIONS=469} [2024-11-19 09:53:27,445 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 211 predicate places. [2024-11-19 09:53:27,446 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 469 transitions, 6371 flow [2024-11-19 09:53:27,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.814814814814815) internal successors, (157), 27 states have internal predecessors, (157), 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 09:53:27,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:27,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:27,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 09:53:27,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:27,647 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:27,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:27,648 INFO L85 PathProgramCache]: Analyzing trace with hash -4479771, now seen corresponding path program 6 times [2024-11-19 09:53:27,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:27,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695206342] [2024-11-19 09:53:27,648 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:53:27,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:27,656 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:53:27,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:27,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:27,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695206342] [2024-11-19 09:53:27,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695206342] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:27,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036852959] [2024-11-19 09:53:27,821 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:53:27,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:27,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:27,822 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:27,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 09:53:27,861 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:53:27,861 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:27,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 09:53:27,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:28,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:28,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036852959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:28,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:28,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-19 09:53:28,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118355590] [2024-11-19 09:53:28,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:28,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-19 09:53:28,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:28,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-19 09:53:28,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2024-11-19 09:53:28,405 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:28,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 469 transitions, 6371 flow. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:28,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:28,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:28,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:29,456 INFO L124 PetriNetUnfolderBase]: 1335/2372 cut-off events. [2024-11-19 09:53:29,456 INFO L125 PetriNetUnfolderBase]: For 42930/42930 co-relation queries the response was YES. [2024-11-19 09:53:29,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16723 conditions, 2372 events. 1335/2372 cut-off events. For 42930/42930 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13095 event pairs, 31 based on Foata normal form. 1/2373 useless extension candidates. Maximal degree in co-relation 16508. Up to 1170 conditions per place. [2024-11-19 09:53:29,483 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 258 selfloop transitions, 348 changer transitions 7/614 dead transitions. [2024-11-19 09:53:29,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 614 transitions, 9204 flow [2024-11-19 09:53:29,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-19 09:53:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-19 09:53:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 261 transitions. [2024-11-19 09:53:29,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.391304347826087 [2024-11-19 09:53:29,485 INFO L175 Difference]: Start difference. First operand has 236 places, 469 transitions, 6371 flow. Second operand 29 states and 261 transitions. [2024-11-19 09:53:29,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 614 transitions, 9204 flow [2024-11-19 09:53:29,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 614 transitions, 8930 flow, removed 107 selfloop flow, removed 12 redundant places. [2024-11-19 09:53:29,679 INFO L231 Difference]: Finished difference. Result has 255 places, 551 transitions, 8558 flow [2024-11-19 09:53:29,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=6176, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=268, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=8558, PETRI_PLACES=255, PETRI_TRANSITIONS=551} [2024-11-19 09:53:29,680 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 230 predicate places. [2024-11-19 09:53:29,681 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 551 transitions, 8558 flow [2024-11-19 09:53:29,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:29,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:29,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:29,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 09:53:29,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:29,882 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:29,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:29,882 INFO L85 PathProgramCache]: Analyzing trace with hash 155820495, now seen corresponding path program 7 times [2024-11-19 09:53:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667315521] [2024-11-19 09:53:29,882 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:53:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:29,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667315521] [2024-11-19 09:53:29,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667315521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:29,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435712862] [2024-11-19 09:53:29,959 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:53:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:29,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:29,961 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:29,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 09:53:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:30,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 09:53:30,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:30,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:30,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435712862] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:30,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:30,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-19 09:53:30,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217810183] [2024-11-19 09:53:30,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:30,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 09:53:30,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:30,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 09:53:30,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-19 09:53:30,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 23 [2024-11-19 09:53:30,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 551 transitions, 8558 flow. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 09:53:30,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:30,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 23 [2024-11-19 09:53:30,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:30,844 INFO L124 PetriNetUnfolderBase]: 1296/2336 cut-off events. [2024-11-19 09:53:30,844 INFO L125 PetriNetUnfolderBase]: For 46981/47039 co-relation queries the response was YES. [2024-11-19 09:53:30,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18016 conditions, 2336 events. 1296/2336 cut-off events. For 46981/47039 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13120 event pairs, 39 based on Foata normal form. 35/2362 useless extension candidates. Maximal degree in co-relation 17870. Up to 1166 conditions per place. [2024-11-19 09:53:30,869 INFO L140 encePairwiseOnDemand]: 17/23 looper letters, 309 selfloop transitions, 220 changer transitions 1/597 dead transitions. [2024-11-19 09:53:30,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 597 transitions, 10311 flow [2024-11-19 09:53:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 09:53:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 09:53:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-11-19 09:53:30,870 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2024-11-19 09:53:30,870 INFO L175 Difference]: Start difference. First operand has 255 places, 551 transitions, 8558 flow. Second operand 6 states and 70 transitions. [2024-11-19 09:53:30,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 597 transitions, 10311 flow [2024-11-19 09:53:31,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 597 transitions, 10099 flow, removed 82 selfloop flow, removed 9 redundant places. [2024-11-19 09:53:31,206 INFO L231 Difference]: Finished difference. Result has 244 places, 559 transitions, 9494 flow [2024-11-19 09:53:31,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=8117, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9494, PETRI_PLACES=244, PETRI_TRANSITIONS=559} [2024-11-19 09:53:31,207 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 219 predicate places. [2024-11-19 09:53:31,207 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 559 transitions, 9494 flow [2024-11-19 09:53:31,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 09:53:31,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:31,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:31,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 09:53:31,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:31,409 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:31,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:31,410 INFO L85 PathProgramCache]: Analyzing trace with hash -440137137, now seen corresponding path program 8 times [2024-11-19 09:53:31,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:31,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830484152] [2024-11-19 09:53:31,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:53:31,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:31,418 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:31,418 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:31,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:31,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830484152] [2024-11-19 09:53:31,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830484152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:31,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321721101] [2024-11-19 09:53:31,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:53:31,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:31,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:31,597 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:31,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 09:53:31,708 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:31,709 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:31,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 09:53:31,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:31,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:32,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321721101] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:32,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:32,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-19 09:53:32,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273880378] [2024-11-19 09:53:32,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:32,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 09:53:32,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:32,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 09:53:32,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2024-11-19 09:53:32,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:32,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 559 transitions, 9494 flow. Second operand has 24 states, 24 states have (on average 5.958333333333333) internal successors, (143), 24 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:32,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:32,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:32,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:33,159 INFO L124 PetriNetUnfolderBase]: 1439/2522 cut-off events. [2024-11-19 09:53:33,160 INFO L125 PetriNetUnfolderBase]: For 41209/41209 co-relation queries the response was YES. [2024-11-19 09:53:33,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20349 conditions, 2522 events. 1439/2522 cut-off events. For 41209/41209 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 13768 event pairs, 39 based on Foata normal form. 2/2524 useless extension candidates. Maximal degree in co-relation 20139. Up to 1239 conditions per place. [2024-11-19 09:53:33,190 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 268 selfloop transitions, 349 changer transitions 21/639 dead transitions. [2024-11-19 09:53:33,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 639 transitions, 11838 flow [2024-11-19 09:53:33,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 09:53:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-19 09:53:33,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 191 transitions. [2024-11-19 09:53:33,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43707093821510296 [2024-11-19 09:53:33,193 INFO L175 Difference]: Start difference. First operand has 244 places, 559 transitions, 9494 flow. Second operand 19 states and 191 transitions. [2024-11-19 09:53:33,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 639 transitions, 11838 flow [2024-11-19 09:53:33,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 639 transitions, 11785 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-11-19 09:53:33,527 INFO L231 Difference]: Finished difference. Result has 269 places, 578 transitions, 10981 flow [2024-11-19 09:53:33,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=9459, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=323, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=10981, PETRI_PLACES=269, PETRI_TRANSITIONS=578} [2024-11-19 09:53:33,528 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 244 predicate places. [2024-11-19 09:53:33,528 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 578 transitions, 10981 flow [2024-11-19 09:53:33,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.958333333333333) internal successors, (143), 24 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:33,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:33,529 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:33,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 09:53:33,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 09:53:33,730 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:33,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:33,731 INFO L85 PathProgramCache]: Analyzing trace with hash 551308517, now seen corresponding path program 9 times [2024-11-19 09:53:33,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:33,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709316828] [2024-11-19 09:53:33,731 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:53:33,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:33,740 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:53:33,740 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:33,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:33,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:33,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709316828] [2024-11-19 09:53:33,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709316828] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:33,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364117521] [2024-11-19 09:53:33,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:53:33,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:33,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:33,945 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:33,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 09:53:33,997 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-19 09:53:33,997 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:33,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 09:53:34,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:34,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:34,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:34,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364117521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:34,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:34,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-19 09:53:34,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38142687] [2024-11-19 09:53:34,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:34,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-19 09:53:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-19 09:53:34,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2024-11-19 09:53:34,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:34,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 578 transitions, 10981 flow. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:34,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:34,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:34,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:35,994 INFO L124 PetriNetUnfolderBase]: 1514/2655 cut-off events. [2024-11-19 09:53:35,994 INFO L125 PetriNetUnfolderBase]: For 48477/48477 co-relation queries the response was YES. [2024-11-19 09:53:36,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23245 conditions, 2655 events. 1514/2655 cut-off events. For 48477/48477 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 14700 event pairs, 32 based on Foata normal form. 2/2657 useless extension candidates. Maximal degree in co-relation 23081. Up to 1233 conditions per place. [2024-11-19 09:53:36,028 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 255 selfloop transitions, 462 changer transitions 11/729 dead transitions. [2024-11-19 09:53:36,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 729 transitions, 14724 flow [2024-11-19 09:53:36,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-19 09:53:36,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-19 09:53:36,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 310 transitions. [2024-11-19 09:53:36,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39641943734015345 [2024-11-19 09:53:36,030 INFO L175 Difference]: Start difference. First operand has 269 places, 578 transitions, 10981 flow. Second operand 34 states and 310 transitions. [2024-11-19 09:53:36,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 729 transitions, 14724 flow [2024-11-19 09:53:36,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 729 transitions, 14531 flow, removed 53 selfloop flow, removed 8 redundant places. [2024-11-19 09:53:36,448 INFO L231 Difference]: Finished difference. Result has 300 places, 656 transitions, 13844 flow [2024-11-19 09:53:36,448 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=10856, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=388, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=13844, PETRI_PLACES=300, PETRI_TRANSITIONS=656} [2024-11-19 09:53:36,449 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 275 predicate places. [2024-11-19 09:53:36,449 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 656 transitions, 13844 flow [2024-11-19 09:53:36,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 09:53:36,449 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:36,449 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:36,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 09:53:36,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:36,650 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:36,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:36,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2040775869, now seen corresponding path program 10 times [2024-11-19 09:53:36,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:36,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384791579] [2024-11-19 09:53:36,651 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:53:36,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:36,656 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:53:36,657 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:36,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:36,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:36,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384791579] [2024-11-19 09:53:36,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384791579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:36,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697317007] [2024-11-19 09:53:36,943 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:53:36,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:36,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:36,947 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:36,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 09:53:36,997 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:53:36,997 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:36,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 09:53:36,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:37,228 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:37,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697317007] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:37,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:37,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 27 [2024-11-19 09:53:37,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720855630] [2024-11-19 09:53:37,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:37,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 09:53:37,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:37,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 09:53:37,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=596, Unknown=0, NotChecked=0, Total=756 [2024-11-19 09:53:37,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:37,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 656 transitions, 13844 flow. Second operand has 28 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 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 09:53:37,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:37,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:37,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:38,817 INFO L124 PetriNetUnfolderBase]: 1512/2654 cut-off events. [2024-11-19 09:53:38,817 INFO L125 PetriNetUnfolderBase]: For 54970/54970 co-relation queries the response was YES. [2024-11-19 09:53:38,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25001 conditions, 2654 events. 1512/2654 cut-off events. For 54970/54970 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 14708 event pairs, 20 based on Foata normal form. 3/2657 useless extension candidates. Maximal degree in co-relation 24878. Up to 1307 conditions per place. [2024-11-19 09:53:38,857 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 233 selfloop transitions, 477 changer transitions 4/715 dead transitions. [2024-11-19 09:53:38,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 715 transitions, 15952 flow [2024-11-19 09:53:38,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 09:53:38,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-19 09:53:38,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 208 transitions. [2024-11-19 09:53:38,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3931947069943289 [2024-11-19 09:53:38,859 INFO L175 Difference]: Start difference. First operand has 300 places, 656 transitions, 13844 flow. Second operand 23 states and 208 transitions. [2024-11-19 09:53:38,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 715 transitions, 15952 flow [2024-11-19 09:53:39,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 715 transitions, 15025 flow, removed 167 selfloop flow, removed 15 redundant places. [2024-11-19 09:53:39,403 INFO L231 Difference]: Finished difference. Result has 311 places, 673 transitions, 15175 flow [2024-11-19 09:53:39,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=12876, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=455, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=15175, PETRI_PLACES=311, PETRI_TRANSITIONS=673} [2024-11-19 09:53:39,404 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 286 predicate places. [2024-11-19 09:53:39,404 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 673 transitions, 15175 flow [2024-11-19 09:53:39,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.714285714285714) internal successors, (160), 28 states have internal predecessors, (160), 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 09:53:39,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:39,406 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:39,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 09:53:39,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 09:53:39,610 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:39,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:39,610 INFO L85 PathProgramCache]: Analyzing trace with hash 484265376, now seen corresponding path program 11 times [2024-11-19 09:53:39,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:39,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798017892] [2024-11-19 09:53:39,610 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:53:39,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:39,620 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-19 09:53:39,620 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:39,841 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 09:53:39,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:39,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798017892] [2024-11-19 09:53:39,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798017892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:39,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834120125] [2024-11-19 09:53:39,842 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 09:53:39,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:39,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:39,844 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:39,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 09:53:39,886 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-19 09:53:39,886 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:39,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 09:53:39,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:40,113 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:40,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834120125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:40,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:40,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 33 [2024-11-19 09:53:40,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163785083] [2024-11-19 09:53:40,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:40,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 09:53:40,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:40,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 09:53:40,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 09:53:40,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:40,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 673 transitions, 15175 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:53:40,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:40,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:40,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:43,467 INFO L124 PetriNetUnfolderBase]: 2033/3561 cut-off events. [2024-11-19 09:53:43,468 INFO L125 PetriNetUnfolderBase]: For 94909/94909 co-relation queries the response was YES. [2024-11-19 09:53:43,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36839 conditions, 3561 events. 2033/3561 cut-off events. For 94909/94909 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 20450 event pairs, 59 based on Foata normal form. 4/3565 useless extension candidates. Maximal degree in co-relation 36658. Up to 952 conditions per place. [2024-11-19 09:53:43,509 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 357 selfloop transitions, 670 changer transitions 44/1072 dead transitions. [2024-11-19 09:53:43,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 1072 transitions, 24760 flow [2024-11-19 09:53:43,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-19 09:53:43,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2024-11-19 09:53:43,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 629 transitions. [2024-11-19 09:53:43,511 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4081765087605451 [2024-11-19 09:53:43,511 INFO L175 Difference]: Start difference. First operand has 311 places, 673 transitions, 15175 flow. Second operand 67 states and 629 transitions. [2024-11-19 09:53:43,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 1072 transitions, 24760 flow [2024-11-19 09:53:44,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 1072 transitions, 24396 flow, removed 158 selfloop flow, removed 9 redundant places. [2024-11-19 09:53:44,323 INFO L231 Difference]: Finished difference. Result has 380 places, 905 transitions, 22853 flow [2024-11-19 09:53:44,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=14959, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=469, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=67, PETRI_FLOW=22853, PETRI_PLACES=380, PETRI_TRANSITIONS=905} [2024-11-19 09:53:44,324 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 355 predicate places. [2024-11-19 09:53:44,324 INFO L471 AbstractCegarLoop]: Abstraction has has 380 places, 905 transitions, 22853 flow [2024-11-19 09:53:44,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:53:44,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:44,325 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:44,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 09:53:44,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 09:53:44,526 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:44,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:44,526 INFO L85 PathProgramCache]: Analyzing trace with hash 127477776, now seen corresponding path program 12 times [2024-11-19 09:53:44,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:44,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001302851] [2024-11-19 09:53:44,526 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:53:44,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:44,533 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:53:44,534 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:44,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:44,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:44,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001302851] [2024-11-19 09:53:44,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001302851] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:44,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667132946] [2024-11-19 09:53:44,735 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 09:53:44,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:44,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:44,736 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:44,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 09:53:44,778 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-19 09:53:44,778 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:44,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 09:53:44,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:45,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:45,054 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:45,541 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:45,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667132946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:45,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:45,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2024-11-19 09:53:45,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861503729] [2024-11-19 09:53:45,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:45,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-19 09:53:45,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:45,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-19 09:53:45,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 09:53:45,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:45,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 905 transitions, 22853 flow. Second operand has 33 states, 33 states have (on average 5.7272727272727275) internal successors, (189), 33 states have internal predecessors, (189), 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 09:53:45,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:45,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:45,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:49,333 INFO L124 PetriNetUnfolderBase]: 2263/4008 cut-off events. [2024-11-19 09:53:49,333 INFO L125 PetriNetUnfolderBase]: For 111788/111788 co-relation queries the response was YES. [2024-11-19 09:53:49,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44693 conditions, 4008 events. 2263/4008 cut-off events. For 111788/111788 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24090 event pairs, 43 based on Foata normal form. 5/4013 useless extension candidates. Maximal degree in co-relation 44590. Up to 1113 conditions per place. [2024-11-19 09:53:49,377 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 405 selfloop transitions, 769 changer transitions 26/1201 dead transitions. [2024-11-19 09:53:49,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 1201 transitions, 30561 flow [2024-11-19 09:53:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-19 09:53:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2024-11-19 09:53:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 726 transitions. [2024-11-19 09:53:49,380 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39456521739130435 [2024-11-19 09:53:49,380 INFO L175 Difference]: Start difference. First operand has 380 places, 905 transitions, 22853 flow. Second operand 80 states and 726 transitions. [2024-11-19 09:53:49,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 1201 transitions, 30561 flow [2024-11-19 09:53:50,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 1201 transitions, 29040 flow, removed 291 selfloop flow, removed 12 redundant places. [2024-11-19 09:53:50,609 INFO L231 Difference]: Finished difference. Result has 458 places, 1033 transitions, 27259 flow [2024-11-19 09:53:50,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=21668, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=646, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=80, PETRI_FLOW=27259, PETRI_PLACES=458, PETRI_TRANSITIONS=1033} [2024-11-19 09:53:50,610 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 433 predicate places. [2024-11-19 09:53:50,610 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 1033 transitions, 27259 flow [2024-11-19 09:53:50,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 5.7272727272727275) internal successors, (189), 33 states have internal predecessors, (189), 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 09:53:50,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:50,611 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:50,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 09:53:50,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 09:53:50,812 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:50,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:50,812 INFO L85 PathProgramCache]: Analyzing trace with hash 841867130, now seen corresponding path program 13 times [2024-11-19 09:53:50,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:50,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134242132] [2024-11-19 09:53:50,812 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:53:50,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:51,035 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:51,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:51,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134242132] [2024-11-19 09:53:51,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134242132] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:51,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89756640] [2024-11-19 09:53:51,036 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 09:53:51,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:51,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:51,038 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:51,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 09:53:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:53:51,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 09:53:51,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:51,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:51,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:53:51,735 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:51,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89756640] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:53:51,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:53:51,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-19 09:53:51,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828911548] [2024-11-19 09:53:51,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:53:51,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 09:53:51,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:53:51,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 09:53:51,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 09:53:51,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:53:51,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1033 transitions, 27259 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:53:51,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:53:51,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:53:51,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:53:57,602 INFO L124 PetriNetUnfolderBase]: 2628/4675 cut-off events. [2024-11-19 09:53:57,602 INFO L125 PetriNetUnfolderBase]: For 162585/162585 co-relation queries the response was YES. [2024-11-19 09:53:57,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54003 conditions, 4675 events. 2628/4675 cut-off events. For 162585/162585 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 29400 event pairs, 52 based on Foata normal form. 6/4681 useless extension candidates. Maximal degree in co-relation 53887. Up to 1120 conditions per place. [2024-11-19 09:53:57,654 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 424 selfloop transitions, 981 changer transitions 31/1437 dead transitions. [2024-11-19 09:53:57,654 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 1437 transitions, 38229 flow [2024-11-19 09:53:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2024-11-19 09:53:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2024-11-19 09:53:57,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 996 transitions. [2024-11-19 09:53:57,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3832243170450173 [2024-11-19 09:53:57,657 INFO L175 Difference]: Start difference. First operand has 458 places, 1033 transitions, 27259 flow. Second operand 113 states and 996 transitions. [2024-11-19 09:53:57,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 1437 transitions, 38229 flow [2024-11-19 09:53:59,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1437 transitions, 37690 flow, removed 117 selfloop flow, removed 21 redundant places. [2024-11-19 09:53:59,271 INFO L231 Difference]: Finished difference. Result has 568 places, 1218 transitions, 35328 flow [2024-11-19 09:53:59,272 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=26848, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=813, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=113, PETRI_FLOW=35328, PETRI_PLACES=568, PETRI_TRANSITIONS=1218} [2024-11-19 09:53:59,272 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 543 predicate places. [2024-11-19 09:53:59,272 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 1218 transitions, 35328 flow [2024-11-19 09:53:59,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:53:59,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:53:59,273 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:53:59,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 09:53:59,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 09:53:59,474 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:53:59,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:53:59,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1488656848, now seen corresponding path program 14 times [2024-11-19 09:53:59,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:53:59,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623271937] [2024-11-19 09:53:59,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:53:59,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:53:59,483 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:59,484 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:59,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:59,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:53:59,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623271937] [2024-11-19 09:53:59,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623271937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:53:59,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597983499] [2024-11-19 09:53:59,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:53:59,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:53:59,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:53:59,699 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:53:59,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 09:53:59,742 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:53:59,742 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:53:59,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 09:53:59,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:53:59,999 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:53:59,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:54:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:54:00,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597983499] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:54:00,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:54:00,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-19 09:54:00,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015693965] [2024-11-19 09:54:00,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:54:00,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 09:54:00,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:54:00,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 09:54:00,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=949, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 09:54:00,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:54:00,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 1218 transitions, 35328 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:54:00,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:54:00,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:54:00,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:54:03,575 INFO L124 PetriNetUnfolderBase]: 2710/4820 cut-off events. [2024-11-19 09:54:03,575 INFO L125 PetriNetUnfolderBase]: For 199809/199809 co-relation queries the response was YES. [2024-11-19 09:54:03,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59672 conditions, 4820 events. 2710/4820 cut-off events. For 199809/199809 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 30557 event pairs, 66 based on Foata normal form. 3/4823 useless extension candidates. Maximal degree in co-relation 59539. Up to 2082 conditions per place. [2024-11-19 09:54:03,641 INFO L140 encePairwiseOnDemand]: 12/23 looper letters, 455 selfloop transitions, 942 changer transitions 12/1410 dead transitions. [2024-11-19 09:54:03,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 1410 transitions, 41509 flow [2024-11-19 09:54:03,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-19 09:54:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2024-11-19 09:54:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 566 transitions. [2024-11-19 09:54:03,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39691444600280507 [2024-11-19 09:54:03,643 INFO L175 Difference]: Start difference. First operand has 568 places, 1218 transitions, 35328 flow. Second operand 62 states and 566 transitions. [2024-11-19 09:54:03,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 1410 transitions, 41509 flow [2024-11-19 09:54:06,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 1410 transitions, 40337 flow, removed 312 selfloop flow, removed 45 redundant places. [2024-11-19 09:54:06,365 INFO L231 Difference]: Finished difference. Result has 597 places, 1286 transitions, 39503 flow [2024-11-19 09:54:06,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=34286, PETRI_DIFFERENCE_MINUEND_PLACES=519, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=876, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=62, PETRI_FLOW=39503, PETRI_PLACES=597, PETRI_TRANSITIONS=1286} [2024-11-19 09:54:06,367 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 572 predicate places. [2024-11-19 09:54:06,367 INFO L471 AbstractCegarLoop]: Abstraction has has 597 places, 1286 transitions, 39503 flow [2024-11-19 09:54:06,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:54:06,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:54:06,368 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:54:06,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 09:54:06,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:54:06,568 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:54:06,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:54:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1703631058, now seen corresponding path program 15 times [2024-11-19 09:54:06,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:54:06,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693817194] [2024-11-19 09:54:06,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:54:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:54:06,575 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:54:06,575 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:54:06,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:54:06,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:54:06,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693817194] [2024-11-19 09:54:06,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693817194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:54:06,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573082379] [2024-11-19 09:54:06,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 09:54:06,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:54:06,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:54:06,794 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:54:06,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 09:54:06,834 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 09:54:06,834 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:54:06,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 09:54:06,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:54:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:54:07,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:54:07,471 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:54:07,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573082379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:54:07,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:54:07,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-19 09:54:07,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933096577] [2024-11-19 09:54:07,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:54:07,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 09:54:07,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:54:07,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 09:54:07,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=954, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 09:54:07,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:54:07,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 1286 transitions, 39503 flow. Second operand has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:54:07,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:54:07,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:54:07,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:54:13,193 INFO L124 PetriNetUnfolderBase]: 3729/6626 cut-off events. [2024-11-19 09:54:13,193 INFO L125 PetriNetUnfolderBase]: For 359768/359768 co-relation queries the response was YES. [2024-11-19 09:54:13,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89191 conditions, 6626 events. 3729/6626 cut-off events. For 359768/359768 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 45339 event pairs, 83 based on Foata normal form. 9/6635 useless extension candidates. Maximal degree in co-relation 89049. Up to 1734 conditions per place. [2024-11-19 09:54:13,289 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 499 selfloop transitions, 1436 changer transitions 19/1955 dead transitions. [2024-11-19 09:54:13,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 1955 transitions, 62004 flow [2024-11-19 09:54:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-19 09:54:13,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2024-11-19 09:54:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 839 transitions. [2024-11-19 09:54:13,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3965028355387524 [2024-11-19 09:54:13,292 INFO L175 Difference]: Start difference. First operand has 597 places, 1286 transitions, 39503 flow. Second operand 92 states and 839 transitions. [2024-11-19 09:54:13,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 1955 transitions, 62004 flow [2024-11-19 09:54:18,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 1955 transitions, 61500 flow, removed 100 selfloop flow, removed 23 redundant places. [2024-11-19 09:54:18,429 INFO L231 Difference]: Finished difference. Result has 696 places, 1759 transitions, 60665 flow [2024-11-19 09:54:18,431 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=39071, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=994, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=92, PETRI_FLOW=60665, PETRI_PLACES=696, PETRI_TRANSITIONS=1759} [2024-11-19 09:54:18,431 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 671 predicate places. [2024-11-19 09:54:18,431 INFO L471 AbstractCegarLoop]: Abstraction has has 696 places, 1759 transitions, 60665 flow [2024-11-19 09:54:18,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.676470588235294) internal successors, (193), 34 states have internal predecessors, (193), 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 09:54:18,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:54:18,432 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:54:18,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 09:54:18,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 09:54:18,632 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-19 09:54:18,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:54:18,633 INFO L85 PathProgramCache]: Analyzing trace with hash -588716294, now seen corresponding path program 16 times [2024-11-19 09:54:18,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:54:18,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333324975] [2024-11-19 09:54:18,633 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:54:18,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:54:18,640 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:54:18,642 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:54:18,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 09:54:18,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:54:18,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333324975] [2024-11-19 09:54:18,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333324975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:54:18,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690778361] [2024-11-19 09:54:18,814 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 09:54:18,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:54:18,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:54:18,815 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 09:54:18,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 09:54:18,857 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 09:54:18,857 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:54:18,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 09:54:18,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:54:19,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:54:19,102 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:54:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:54:19,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690778361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:54:19,516 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:54:19,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 32 [2024-11-19 09:54:19,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106699124] [2024-11-19 09:54:19,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:54:19,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-19 09:54:19,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:54:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-19 09:54:19,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=922, Unknown=0, NotChecked=0, Total=1056 [2024-11-19 09:54:19,526 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 23 [2024-11-19 09:54:19,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 696 places, 1759 transitions, 60665 flow. Second operand has 33 states, 33 states have (on average 5.7272727272727275) internal successors, (189), 33 states have internal predecessors, (189), 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 09:54:19,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:54:19,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 23 [2024-11-19 09:54:19,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:54:29,975 INFO L124 PetriNetUnfolderBase]: 5357/9489 cut-off events. [2024-11-19 09:54:29,975 INFO L125 PetriNetUnfolderBase]: For 645760/645760 co-relation queries the response was YES. [2024-11-19 09:54:30,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143106 conditions, 9489 events. 5357/9489 cut-off events. For 645760/645760 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 69899 event pairs, 86 based on Foata normal form. 16/9505 useless extension candidates. Maximal degree in co-relation 142931. Up to 3081 conditions per place. [2024-11-19 09:54:30,269 INFO L140 encePairwiseOnDemand]: 11/23 looper letters, 747 selfloop transitions, 1956 changer transitions 166/2870 dead transitions. [2024-11-19 09:54:30,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 823 places, 2870 transitions, 103155 flow [2024-11-19 09:54:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2024-11-19 09:54:30,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2024-11-19 09:54:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 1099 transitions. [2024-11-19 09:54:30,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36198945981554675 [2024-11-19 09:54:30,273 INFO L175 Difference]: Start difference. First operand has 696 places, 1759 transitions, 60665 flow. Second operand 132 states and 1099 transitions. [2024-11-19 09:54:30,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 823 places, 2870 transitions, 103155 flow