./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix017.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix017.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:11:23,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:11:23,831 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:11:23,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:11:23,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:11:23,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:11:23,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:11:23,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:11:23,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:11:23,867 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:11:23,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:11:23,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:11:23,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:11:23,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:11:23,868 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:11:23,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:11:23,869 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:11:23,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:11:23,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:11:23,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:11:23,870 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:11:23,870 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:11:23,871 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:11:23,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:11:23,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:11:23,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:11:23,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:11:23,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:11:23,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:11:23,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:11:23,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:11:23,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:11:23,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:11:23,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:11:23,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:11:23,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:11:23,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:11:23,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:11:23,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:11:23,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:11:23,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:11:23,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:11:23,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 [2024-11-17 03:11:24,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:11:24,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:11:24,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:11:24,105 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:11:24,106 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:11:24,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-17 03:11:25,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:11:25,658 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:11:25,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-17 03:11:25,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8041e5e6/ca8ebd7e099b4099ae28890cc8ca487c/FLAG141456da5 [2024-11-17 03:11:25,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8041e5e6/ca8ebd7e099b4099ae28890cc8ca487c [2024-11-17 03:11:25,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:11:25,692 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:11:25,693 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:11:25,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:11:25,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:11:25,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:11:25" (1/1) ... [2024-11-17 03:11:25,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f86159f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:25, skipping insertion in model container [2024-11-17 03:11:25,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:11:25" (1/1) ... [2024-11-17 03:11:25,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:11:26,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:11:26,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:11:26,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:11:26,195 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:11:26,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26 WrapperNode [2024-11-17 03:11:26,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:11:26,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:11:26,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:11:26,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:11:26,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,248 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-17 03:11:26,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:11:26,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:11:26,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:11:26,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:11:26,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,296 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:11:26,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,310 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,314 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:11:26,334 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:11:26,334 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:11:26,335 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:11:26,335 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (1/1) ... [2024-11-17 03:11:26,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:11:26,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:11:26,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:11:26,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:11:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:11:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:11:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:11:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:11:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:11:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:11:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:11:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:11:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:11:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:11:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:11:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:11:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:11:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:11:26,436 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:11:26,574 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:11:26,577 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:11:26,916 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:11:26,917 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:11:27,093 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:11:27,094 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:11:27,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:11:27 BoogieIcfgContainer [2024-11-17 03:11:27,094 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:11:27,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:11:27,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:11:27,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:11:27,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:11:25" (1/3) ... [2024-11-17 03:11:27,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c856644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:11:27, skipping insertion in model container [2024-11-17 03:11:27,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:11:26" (2/3) ... [2024-11-17 03:11:27,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c856644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:11:27, skipping insertion in model container [2024-11-17 03:11:27,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:11:27" (3/3) ... [2024-11-17 03:11:27,103 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2024-11-17 03:11:27,117 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:11:27,117 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-17 03:11:27,117 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:11:27,170 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:11:27,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-17 03:11:27,230 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-17 03:11:27,230 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:27,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-11-17 03:11:27,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-17 03:11:27,240 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-17 03:11:27,252 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:11:27,257 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;@4afdb539, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:11:27,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-17 03:11:27,260 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:11:27,260 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-17 03:11:27,260 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:27,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:27,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:11:27,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:27,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:27,267 INFO L85 PathProgramCache]: Analyzing trace with hash 13834927, now seen corresponding path program 1 times [2024-11-17 03:11:27,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:27,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100444413] [2024-11-17 03:11:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:27,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:27,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100444413] [2024-11-17 03:11:27,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100444413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:27,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:27,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:11:27,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075889263] [2024-11-17 03:11:27,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:27,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:11:27,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:11:27,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:11:27,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:27,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:27,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:27,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:27,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:33,049 INFO L124 PetriNetUnfolderBase]: 50459/66898 cut-off events. [2024-11-17 03:11:33,049 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2024-11-17 03:11:33,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133518 conditions, 66898 events. 50459/66898 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 1925. Compared 411021 event pairs, 6239 based on Foata normal form. 2988/69839 useless extension candidates. Maximal degree in co-relation 133506. Up to 57251 conditions per place. [2024-11-17 03:11:33,381 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 65 selfloop transitions, 2 changer transitions 2/77 dead transitions. [2024-11-17 03:11:33,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 313 flow [2024-11-17 03:11:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:11:33,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:11:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-11-17 03:11:33,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2024-11-17 03:11:33,393 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 110 transitions. [2024-11-17 03:11:33,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 313 flow [2024-11-17 03:11:33,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 77 transitions, 306 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:11:33,402 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-17 03:11:33,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-11-17 03:11:33,408 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-17 03:11:33,409 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-17 03:11:33,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:33,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:33,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:33,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:11:33,410 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:33,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:33,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2062742743, now seen corresponding path program 1 times [2024-11-17 03:11:33,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:33,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995200634] [2024-11-17 03:11:33,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:33,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:33,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:33,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995200634] [2024-11-17 03:11:33,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995200634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:33,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:33,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:11:33,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285893033] [2024-11-17 03:11:33,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:33,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:11:33,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:33,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:11:33,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:11:33,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2024-11-17 03:11:33,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:33,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:33,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2024-11-17 03:11:33,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:37,901 INFO L124 PetriNetUnfolderBase]: 45383/63227 cut-off events. [2024-11-17 03:11:37,902 INFO L125 PetriNetUnfolderBase]: For 2354/2354 co-relation queries the response was YES. [2024-11-17 03:11:38,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125611 conditions, 63227 events. 45383/63227 cut-off events. For 2354/2354 co-relation queries the response was YES. Maximal size of possible extension queue 1946. Compared 409673 event pairs, 45383 based on Foata normal form. 1512/64462 useless extension candidates. Maximal degree in co-relation 125601. Up to 59508 conditions per place. [2024-11-17 03:11:38,247 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-17 03:11:38,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2024-11-17 03:11:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:11:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:11:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-17 03:11:38,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2024-11-17 03:11:38,249 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2024-11-17 03:11:38,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2024-11-17 03:11:38,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:11:38,253 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-17 03:11:38,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-17 03:11:38,253 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-17 03:11:38,254 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-17 03:11:38,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:38,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:38,254 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:38,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:11:38,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:38,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:38,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2062742118, now seen corresponding path program 1 times [2024-11-17 03:11:38,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:38,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692750421] [2024-11-17 03:11:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:38,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:38,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:38,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:38,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692750421] [2024-11-17 03:11:38,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692750421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:38,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:38,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:11:38,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165323000] [2024-11-17 03:11:38,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:38,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:11:38,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:38,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:11:38,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:11:38,499 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:38,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:38,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:38,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:38,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:41,829 INFO L124 PetriNetUnfolderBase]: 36511/52327 cut-off events. [2024-11-17 03:11:41,829 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:11:41,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101565 conditions, 52327 events. 36511/52327 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1673. Compared 354675 event pairs, 4407 based on Foata normal form. 1512/53796 useless extension candidates. Maximal degree in co-relation 101559. Up to 29929 conditions per place. [2024-11-17 03:11:42,099 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 75 selfloop transitions, 6 changer transitions 1/89 dead transitions. [2024-11-17 03:11:42,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 89 transitions, 358 flow [2024-11-17 03:11:42,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:11:42,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:11:42,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-17 03:11:42,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-17 03:11:42,101 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 4 states and 132 transitions. [2024-11-17 03:11:42,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 89 transitions, 358 flow [2024-11-17 03:11:42,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 89 transitions, 357 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:11:42,103 INFO L231 Difference]: Finished difference. Result has 58 places, 47 transitions, 137 flow [2024-11-17 03:11:42,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=58, PETRI_TRANSITIONS=47} [2024-11-17 03:11:42,104 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-11-17 03:11:42,104 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 137 flow [2024-11-17 03:11:42,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:42,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:42,105 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:42,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:11:42,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:42,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash 742694382, now seen corresponding path program 1 times [2024-11-17 03:11:42,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:42,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40215584] [2024-11-17 03:11:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:42,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:42,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:42,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40215584] [2024-11-17 03:11:42,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40215584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:42,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:42,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:11:42,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205511061] [2024-11-17 03:11:42,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:42,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:11:42,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:42,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:11:42,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:11:42,355 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:42,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:42,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:42,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:42,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:44,830 INFO L124 PetriNetUnfolderBase]: 23071/33095 cut-off events. [2024-11-17 03:11:44,830 INFO L125 PetriNetUnfolderBase]: For 6336/6336 co-relation queries the response was YES. [2024-11-17 03:11:44,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73472 conditions, 33095 events. 23071/33095 cut-off events. For 6336/6336 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 207233 event pairs, 2563 based on Foata normal form. 1192/34244 useless extension candidates. Maximal degree in co-relation 73463. Up to 13513 conditions per place. [2024-11-17 03:11:44,968 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 97 selfloop transitions, 10 changer transitions 1/115 dead transitions. [2024-11-17 03:11:44,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 115 transitions, 518 flow [2024-11-17 03:11:44,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:11:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:11:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-17 03:11:44,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-11-17 03:11:44,970 INFO L175 Difference]: Start difference. First operand has 58 places, 47 transitions, 137 flow. Second operand 5 states and 170 transitions. [2024-11-17 03:11:44,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 115 transitions, 518 flow [2024-11-17 03:11:44,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 115 transitions, 507 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:11:44,981 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 189 flow [2024-11-17 03:11:44,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2024-11-17 03:11:44,982 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-11-17 03:11:44,982 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 189 flow [2024-11-17 03:11:44,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:44,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:44,983 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:44,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:11:44,983 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:44,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:44,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1090951161, now seen corresponding path program 1 times [2024-11-17 03:11:44,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:44,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356166714] [2024-11-17 03:11:44,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:44,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:45,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:45,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:45,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356166714] [2024-11-17 03:11:45,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356166714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:45,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:45,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:11:45,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983691778] [2024-11-17 03:11:45,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:45,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:11:45,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:45,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:11:45,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:11:45,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:45,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 189 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:45,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:45,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:45,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:46,812 INFO L124 PetriNetUnfolderBase]: 13599/19127 cut-off events. [2024-11-17 03:11:46,813 INFO L125 PetriNetUnfolderBase]: For 11710/11710 co-relation queries the response was YES. [2024-11-17 03:11:46,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46832 conditions, 19127 events. 13599/19127 cut-off events. For 11710/11710 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 104975 event pairs, 2215 based on Foata normal form. 584/19668 useless extension candidates. Maximal degree in co-relation 46821. Up to 5388 conditions per place. [2024-11-17 03:11:46,930 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 117 selfloop transitions, 14 changer transitions 1/139 dead transitions. [2024-11-17 03:11:46,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 139 transitions, 677 flow [2024-11-17 03:11:46,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:11:46,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:11:46,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-11-17 03:11:46,932 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2024-11-17 03:11:46,932 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 189 flow. Second operand 6 states and 206 transitions. [2024-11-17 03:11:46,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 139 transitions, 677 flow [2024-11-17 03:11:47,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 139 transitions, 647 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 03:11:47,091 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 239 flow [2024-11-17 03:11:47,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-17 03:11:47,092 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2024-11-17 03:11:47,092 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 239 flow [2024-11-17 03:11:47,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:47,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:47,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:47,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:11:47,094 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:47,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:47,094 INFO L85 PathProgramCache]: Analyzing trace with hash -261723378, now seen corresponding path program 1 times [2024-11-17 03:11:47,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:47,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405903192] [2024-11-17 03:11:47,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:47,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:47,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:47,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405903192] [2024-11-17 03:11:47,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405903192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:47,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:47,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:11:47,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080649236] [2024-11-17 03:11:47,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:47,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:11:47,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:47,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:11:47,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:11:47,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:47,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:47,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:47,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:47,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:48,589 INFO L124 PetriNetUnfolderBase]: 10399/14271 cut-off events. [2024-11-17 03:11:48,589 INFO L125 PetriNetUnfolderBase]: For 11302/11302 co-relation queries the response was YES. [2024-11-17 03:11:48,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36441 conditions, 14271 events. 10399/14271 cut-off events. For 11302/11302 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 73867 event pairs, 2043 based on Foata normal form. 152/14380 useless extension candidates. Maximal degree in co-relation 36429. Up to 5376 conditions per place. [2024-11-17 03:11:48,697 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 101 selfloop transitions, 18 changer transitions 1/127 dead transitions. [2024-11-17 03:11:48,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 127 transitions, 639 flow [2024-11-17 03:11:48,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:11:48,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:11:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2024-11-17 03:11:48,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.544973544973545 [2024-11-17 03:11:48,699 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 239 flow. Second operand 7 states and 206 transitions. [2024-11-17 03:11:48,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 127 transitions, 639 flow [2024-11-17 03:11:48,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 127 transitions, 593 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-17 03:11:48,942 INFO L231 Difference]: Finished difference. Result has 68 places, 55 transitions, 249 flow [2024-11-17 03:11:48,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=249, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2024-11-17 03:11:48,942 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2024-11-17 03:11:48,943 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 249 flow [2024-11-17 03:11:48,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:48,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:48,943 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:48,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:11:48,944 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:48,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:48,944 INFO L85 PathProgramCache]: Analyzing trace with hash 94085253, now seen corresponding path program 1 times [2024-11-17 03:11:48,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:48,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003708695] [2024-11-17 03:11:48,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:48,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:49,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:49,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:49,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003708695] [2024-11-17 03:11:49,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003708695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:49,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:49,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 03:11:49,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051572791] [2024-11-17 03:11:49,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:49,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 03:11:49,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:49,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 03:11:49,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-17 03:11:49,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:49,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 249 flow. Second operand has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:49,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:49,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:49,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:51,465 INFO L124 PetriNetUnfolderBase]: 15781/21634 cut-off events. [2024-11-17 03:11:51,466 INFO L125 PetriNetUnfolderBase]: For 15514/15514 co-relation queries the response was YES. [2024-11-17 03:11:51,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55401 conditions, 21634 events. 15781/21634 cut-off events. For 15514/15514 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 117445 event pairs, 3947 based on Foata normal form. 16/21643 useless extension candidates. Maximal degree in co-relation 55388. Up to 13112 conditions per place. [2024-11-17 03:11:51,614 INFO L140 encePairwiseOnDemand]: 40/54 looper letters, 107 selfloop transitions, 26 changer transitions 64/204 dead transitions. [2024-11-17 03:11:51,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 204 transitions, 1105 flow [2024-11-17 03:11:51,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 03:11:51,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 03:11:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 318 transitions. [2024-11-17 03:11:51,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49074074074074076 [2024-11-17 03:11:51,616 INFO L175 Difference]: Start difference. First operand has 68 places, 55 transitions, 249 flow. Second operand 12 states and 318 transitions. [2024-11-17 03:11:51,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 204 transitions, 1105 flow [2024-11-17 03:11:52,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 204 transitions, 916 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-17 03:11:52,091 INFO L231 Difference]: Finished difference. Result has 77 places, 80 transitions, 332 flow [2024-11-17 03:11:52,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=332, PETRI_PLACES=77, PETRI_TRANSITIONS=80} [2024-11-17 03:11:52,092 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 16 predicate places. [2024-11-17 03:11:52,092 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 80 transitions, 332 flow [2024-11-17 03:11:52,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:52,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:52,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:52,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:11:52,093 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:52,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1293657611, now seen corresponding path program 2 times [2024-11-17 03:11:52,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117736491] [2024-11-17 03:11:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:52,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:52,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:52,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117736491] [2024-11-17 03:11:52,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117736491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:52,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:52,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:11:52,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684707985] [2024-11-17 03:11:52,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:52,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:11:52,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:52,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:11:52,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:11:52,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:52,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 80 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:52,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:52,442 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:52,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:54,307 INFO L124 PetriNetUnfolderBase]: 15559/21371 cut-off events. [2024-11-17 03:11:54,307 INFO L125 PetriNetUnfolderBase]: For 17811/17817 co-relation queries the response was YES. [2024-11-17 03:11:54,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62503 conditions, 21371 events. 15559/21371 cut-off events. For 17811/17817 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 117250 event pairs, 1929 based on Foata normal form. 17/21369 useless extension candidates. Maximal degree in co-relation 62487. Up to 11598 conditions per place. [2024-11-17 03:11:54,440 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 88 selfloop transitions, 2 changer transitions 73/170 dead transitions. [2024-11-17 03:11:54,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 170 transitions, 1000 flow [2024-11-17 03:11:54,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:11:54,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:11:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2024-11-17 03:11:54,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5123456790123457 [2024-11-17 03:11:54,441 INFO L175 Difference]: Start difference. First operand has 77 places, 80 transitions, 332 flow. Second operand 6 states and 166 transitions. [2024-11-17 03:11:54,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 170 transitions, 1000 flow [2024-11-17 03:11:54,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 170 transitions, 990 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-17 03:11:54,453 INFO L231 Difference]: Finished difference. Result has 79 places, 72 transitions, 298 flow [2024-11-17 03:11:54,453 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=79, PETRI_TRANSITIONS=72} [2024-11-17 03:11:54,454 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 18 predicate places. [2024-11-17 03:11:54,454 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 72 transitions, 298 flow [2024-11-17 03:11:54,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:54,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:54,454 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:54,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:11:54,454 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:54,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:54,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1114247011, now seen corresponding path program 3 times [2024-11-17 03:11:54,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:54,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965485219] [2024-11-17 03:11:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:54,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:54,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:54,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965485219] [2024-11-17 03:11:54,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965485219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:54,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:54,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:11:54,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383594608] [2024-11-17 03:11:54,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:54,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:11:54,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:54,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:11:54,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:11:54,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:54,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 72 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:54,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:54,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:54,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:11:56,410 INFO L124 PetriNetUnfolderBase]: 13574/18914 cut-off events. [2024-11-17 03:11:56,410 INFO L125 PetriNetUnfolderBase]: For 18906/18914 co-relation queries the response was YES. [2024-11-17 03:11:56,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54403 conditions, 18914 events. 13574/18914 cut-off events. For 18906/18914 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 104951 event pairs, 917 based on Foata normal form. 19/18924 useless extension candidates. Maximal degree in co-relation 54385. Up to 10698 conditions per place. [2024-11-17 03:11:56,562 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 126 selfloop transitions, 16 changer transitions 25/174 dead transitions. [2024-11-17 03:11:56,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 174 transitions, 1041 flow [2024-11-17 03:11:56,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:11:56,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:11:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2024-11-17 03:11:56,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4973544973544973 [2024-11-17 03:11:56,564 INFO L175 Difference]: Start difference. First operand has 79 places, 72 transitions, 298 flow. Second operand 7 states and 188 transitions. [2024-11-17 03:11:56,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 174 transitions, 1041 flow [2024-11-17 03:11:56,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 174 transitions, 990 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-11-17 03:11:56,581 INFO L231 Difference]: Finished difference. Result has 79 places, 81 transitions, 396 flow [2024-11-17 03:11:56,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=396, PETRI_PLACES=79, PETRI_TRANSITIONS=81} [2024-11-17 03:11:56,581 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 18 predicate places. [2024-11-17 03:11:56,582 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 81 transitions, 396 flow [2024-11-17 03:11:56,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:56,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:11:56,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:11:56,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:11:56,582 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:11:56,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:11:56,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1861391063, now seen corresponding path program 4 times [2024-11-17 03:11:56,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:11:56,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336745714] [2024-11-17 03:11:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:11:56,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:11:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:11:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:11:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:11:56,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336745714] [2024-11-17 03:11:56,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336745714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:11:56,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:11:56,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:11:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282906014] [2024-11-17 03:11:56,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:11:56,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:11:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:11:56,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:11:56,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:11:56,974 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2024-11-17 03:11:56,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 81 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:11:56,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:11:56,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2024-11-17 03:11:56,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand