./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix043.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/mix043.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 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:15:16,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:15:16,604 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:15:16,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:15:16,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:15:16,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:15:16,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:15:16,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:15:16,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:15:16,647 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:15:16,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:15:16,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:15:16,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:15:16,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:15:16,650 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:15:16,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:15:16,651 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:15:16,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:15:16,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:15:16,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:15:16,652 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:15:16,656 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:15:16,657 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:15:16,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:15:16,657 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:15:16,657 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:15:16,658 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:15:16,658 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:15:16,658 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:15:16,658 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:15:16,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:15:16,659 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:15:16,659 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:15:16,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:15:16,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:15:16,660 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:15:16,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:15:16,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:15:16,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:15:16,662 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:15:16,662 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:15:16,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:15:16,663 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bfd96daa3950021158d7079dc25a62741fa5d5a7f9e521049c1a78760db50f1 [2024-11-17 03:15:16,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:15:16,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:15:16,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:15:16,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:15:16,972 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:15:16,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2024-11-17 03:15:18,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:15:18,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:15:18,807 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix043.oepc.i [2024-11-17 03:15:18,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca82931c2/fbf331c1c50a4c3cbbe850902daa8052/FLAGc6b74b501 [2024-11-17 03:15:19,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca82931c2/fbf331c1c50a4c3cbbe850902daa8052 [2024-11-17 03:15:19,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:15:19,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:15:19,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:15:19,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:15:19,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:15:19,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0d01e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19, skipping insertion in model container [2024-11-17 03:15:19,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:15:19,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:15:19,520 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:15:19,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:15:19,643 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:15:19,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19 WrapperNode [2024-11-17 03:15:19,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:15:19,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:15:19,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:15:19,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:15:19,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,712 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-17 03:15:19,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:15:19,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:15:19,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:15:19,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:15:19,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,758 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 03:15:19,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,772 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:15:19,791 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:15:19,791 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:15:19,793 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:15:19,794 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (1/1) ... [2024-11-17 03:15:19,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:15:19,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:15:19,828 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 03:15:19,833 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 03:15:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:15:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:15:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:15:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:15:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:15:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:15:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:15:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:15:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:15:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:15:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:15:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:15:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:15:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:15:19,880 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 03:15:20,010 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:15:20,013 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:15:20,457 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:15:20,457 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:15:20,696 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:15:20,697 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:15:20,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:15:20 BoogieIcfgContainer [2024-11-17 03:15:20,698 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:15:20,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:15:20,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:15:20,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:15:20,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:15:19" (1/3) ... [2024-11-17 03:15:20,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410acced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:15:20, skipping insertion in model container [2024-11-17 03:15:20,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:15:19" (2/3) ... [2024-11-17 03:15:20,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410acced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:15:20, skipping insertion in model container [2024-11-17 03:15:20,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:15:20" (3/3) ... [2024-11-17 03:15:20,710 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.oepc.i [2024-11-17 03:15:20,727 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:15:20,728 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-17 03:15:20,728 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:15:20,788 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:15:20,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-17 03:15:20,865 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-17 03:15:20,865 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:15:20,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 108 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-17 03:15:20,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-17 03:15:20,878 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-17 03:15:20,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:15:20,898 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;@70077d75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:15:20,899 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-17 03:15:20,907 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:15:20,909 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-17 03:15:20,910 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:15:20,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:20,911 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 03:15:20,911 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 03:15:20,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:20,917 INFO L85 PathProgramCache]: Analyzing trace with hash 14018606, now seen corresponding path program 1 times [2024-11-17 03:15:20,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:20,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371578847] [2024-11-17 03:15:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:20,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:21,438 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 03:15:21,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:21,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371578847] [2024-11-17 03:15:21,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371578847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:21,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:21,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:15:21,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251260062] [2024-11-17 03:15:21,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:21,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:15:21,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:21,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:15:21,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:15:21,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:21,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 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 03:15:21,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:21,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:21,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:29,547 INFO L124 PetriNetUnfolderBase]: 57803/76548 cut-off events. [2024-11-17 03:15:29,547 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-17 03:15:29,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152672 conditions, 76548 events. 57803/76548 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 2146. Compared 471918 event pairs, 7163 based on Foata normal form. 3420/79926 useless extension candidates. Maximal degree in co-relation 152660. Up to 65471 conditions per place. [2024-11-17 03:15:30,110 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 67 selfloop transitions, 2 changer transitions 2/79 dead transitions. [2024-11-17 03:15:30,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 79 transitions, 321 flow [2024-11-17 03:15:30,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:15:30,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:15:30,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-11-17 03:15:30,124 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6787878787878788 [2024-11-17 03:15:30,126 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 112 transitions. [2024-11-17 03:15:30,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 79 transitions, 321 flow [2024-11-17 03:15:30,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 79 transitions, 314 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:15:30,141 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-17 03:15:30,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-17 03:15:30,148 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-17 03:15:30,148 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-17 03:15:30,149 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 03:15:30,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:30,149 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 03:15:30,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:15:30,150 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 03:15:30,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:30,152 INFO L85 PathProgramCache]: Analyzing trace with hash -297422455, now seen corresponding path program 1 times [2024-11-17 03:15:30,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:30,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467719615] [2024-11-17 03:15:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:30,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:30,266 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 03:15:30,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:30,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467719615] [2024-11-17 03:15:30,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467719615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:30,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:30,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:15:30,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100157270] [2024-11-17 03:15:30,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:30,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:15:30,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:30,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:15:30,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:15:30,273 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-17 03:15:30,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 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 03:15:30,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:30,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-17 03:15:30,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:36,346 INFO L124 PetriNetUnfolderBase]: 51971/72409 cut-off events. [2024-11-17 03:15:36,346 INFO L125 PetriNetUnfolderBase]: For 2678/2678 co-relation queries the response was YES. [2024-11-17 03:15:36,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143649 conditions, 72409 events. 51971/72409 cut-off events. For 2678/2678 co-relation queries the response was YES. Maximal size of possible extension queue 2166. Compared 474260 event pairs, 51971 based on Foata normal form. 1728/73891 useless extension candidates. Maximal degree in co-relation 143639. Up to 68040 conditions per place. [2024-11-17 03:15:36,713 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-17 03:15:36,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2024-11-17 03:15:36,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:15:36,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:15:36,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-17 03:15:36,715 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2024-11-17 03:15:36,715 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2024-11-17 03:15:36,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2024-11-17 03:15:36,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:15:36,718 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-17 03:15:36,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-17 03:15:36,719 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-17 03:15:36,719 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-17 03:15:36,719 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 03:15:36,719 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:36,720 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 03:15:36,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:15:36,720 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 03:15:36,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:36,721 INFO L85 PathProgramCache]: Analyzing trace with hash -297421924, now seen corresponding path program 1 times [2024-11-17 03:15:36,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:36,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741314327] [2024-11-17 03:15:36,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:36,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:36,961 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 03:15:36,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:36,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741314327] [2024-11-17 03:15:36,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741314327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:36,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:36,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:15:36,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83471354] [2024-11-17 03:15:36,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:36,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:15:36,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:36,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:15:36,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:15:36,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:36,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 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 03:15:36,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:36,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:36,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:41,275 INFO L124 PetriNetUnfolderBase]: 41411/59249 cut-off events. [2024-11-17 03:15:41,275 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:15:41,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114947 conditions, 59249 events. 41411/59249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1839. Compared 404866 event pairs, 5075 based on Foata normal form. 1728/60963 useless extension candidates. Maximal degree in co-relation 114941. Up to 33841 conditions per place. [2024-11-17 03:15:41,624 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 6 changer transitions 1/92 dead transitions. [2024-11-17 03:15:41,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 92 transitions, 370 flow [2024-11-17 03:15:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:15:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:15:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2024-11-17 03:15:41,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-17 03:15:41,632 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 4 states and 135 transitions. [2024-11-17 03:15:41,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 92 transitions, 370 flow [2024-11-17 03:15:41,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 92 transitions, 369 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:15:41,635 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 139 flow [2024-11-17 03:15:41,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-17 03:15:41,636 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-11-17 03:15:41,637 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 139 flow [2024-11-17 03:15:41,637 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 03:15:41,637 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:41,638 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 03:15:41,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:15:41,638 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 03:15:41,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:41,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1667199820, now seen corresponding path program 1 times [2024-11-17 03:15:41,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:41,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454558028] [2024-11-17 03:15:41,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:41,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:41,949 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 03:15:41,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:41,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454558028] [2024-11-17 03:15:41,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454558028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:41,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:41,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:15:41,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933891009] [2024-11-17 03:15:41,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:41,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:15:41,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:41,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:15:41,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:15:41,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:41,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 139 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 03:15:41,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:41,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:41,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:44,967 INFO L124 PetriNetUnfolderBase]: 25795/36913 cut-off events. [2024-11-17 03:15:44,968 INFO L125 PetriNetUnfolderBase]: For 7038/7038 co-relation queries the response was YES. [2024-11-17 03:15:45,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81794 conditions, 36913 events. 25795/36913 cut-off events. For 7038/7038 co-relation queries the response was YES. Maximal size of possible extension queue 935. Compared 232388 event pairs, 2975 based on Foata normal form. 1344/38243 useless extension candidates. Maximal degree in co-relation 81785. Up to 14833 conditions per place. [2024-11-17 03:15:45,137 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 101 selfloop transitions, 10 changer transitions 1/119 dead transitions. [2024-11-17 03:15:45,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 119 transitions, 534 flow [2024-11-17 03:15:45,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:15:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:15:45,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-17 03:15:45,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6327272727272727 [2024-11-17 03:15:45,140 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 139 flow. Second operand 5 states and 174 transitions. [2024-11-17 03:15:45,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 119 transitions, 534 flow [2024-11-17 03:15:45,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 119 transitions, 523 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:15:45,162 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 191 flow [2024-11-17 03:15:45,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-11-17 03:15:45,163 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-11-17 03:15:45,163 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 191 flow [2024-11-17 03:15:45,163 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 03:15:45,164 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:45,164 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 03:15:45,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:15:45,164 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 03:15:45,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:45,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1526811721, now seen corresponding path program 1 times [2024-11-17 03:15:45,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:45,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767279774] [2024-11-17 03:15:45,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:45,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:45,485 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 03:15:45,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:45,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767279774] [2024-11-17 03:15:45,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767279774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:45,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:45,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:15:45,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573015867] [2024-11-17 03:15:45,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:45,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:15:45,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:15:45,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:15:45,489 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:45,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 191 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 03:15:45,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:45,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:45,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:47,459 INFO L124 PetriNetUnfolderBase]: 15171/21265 cut-off events. [2024-11-17 03:15:47,459 INFO L125 PetriNetUnfolderBase]: For 12934/12934 co-relation queries the response was YES. [2024-11-17 03:15:47,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51862 conditions, 21265 events. 15171/21265 cut-off events. For 12934/12934 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 117388 event pairs, 2591 based on Foata normal form. 640/21891 useless extension candidates. Maximal degree in co-relation 51851. Up to 6144 conditions per place. [2024-11-17 03:15:47,531 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 122 selfloop transitions, 14 changer transitions 1/144 dead transitions. [2024-11-17 03:15:47,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 144 transitions, 697 flow [2024-11-17 03:15:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:15:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:15:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-11-17 03:15:47,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6393939393939394 [2024-11-17 03:15:47,533 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 191 flow. Second operand 6 states and 211 transitions. [2024-11-17 03:15:47,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 144 transitions, 697 flow [2024-11-17 03:15:47,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 144 transitions, 667 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 03:15:47,677 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 241 flow [2024-11-17 03:15:47,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2024-11-17 03:15:47,678 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-11-17 03:15:47,678 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 241 flow [2024-11-17 03:15:47,679 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 03:15:47,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:47,679 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 03:15:47,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:15:47,679 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 03:15:47,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:47,680 INFO L85 PathProgramCache]: Analyzing trace with hash 316040044, now seen corresponding path program 1 times [2024-11-17 03:15:47,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:47,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040372085] [2024-11-17 03:15:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:47,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:47,990 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 03:15:47,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:47,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040372085] [2024-11-17 03:15:47,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040372085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:47,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:47,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:15:47,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228468700] [2024-11-17 03:15:47,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:47,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:15:47,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:47,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:15:47,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:15:47,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:47,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 241 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 03:15:47,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:47,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:47,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:49,177 INFO L124 PetriNetUnfolderBase]: 11715/16033 cut-off events. [2024-11-17 03:15:49,178 INFO L125 PetriNetUnfolderBase]: For 12446/12446 co-relation queries the response was YES. [2024-11-17 03:15:49,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40647 conditions, 16033 events. 11715/16033 cut-off events. For 12446/12446 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 83712 event pairs, 2399 based on Foata normal form. 160/16179 useless extension candidates. Maximal degree in co-relation 40635. Up to 6144 conditions per place. [2024-11-17 03:15:49,271 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 105 selfloop transitions, 18 changer transitions 1/131 dead transitions. [2024-11-17 03:15:49,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 131 transitions, 655 flow [2024-11-17 03:15:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:15:49,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:15:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2024-11-17 03:15:49,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-17 03:15:49,273 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 241 flow. Second operand 7 states and 210 transitions. [2024-11-17 03:15:49,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 131 transitions, 655 flow [2024-11-17 03:15:49,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 131 transitions, 609 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-17 03:15:49,484 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 251 flow [2024-11-17 03:15:49,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-11-17 03:15:49,485 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-11-17 03:15:49,486 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 251 flow [2024-11-17 03:15:49,486 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 03:15:49,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:49,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:15:49,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:15:49,487 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 03:15:49,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:49,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2054100492, now seen corresponding path program 1 times [2024-11-17 03:15:49,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:49,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562634664] [2024-11-17 03:15:49,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:49,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:50,052 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 03:15:50,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:50,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562634664] [2024-11-17 03:15:50,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562634664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:50,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:50,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:15:50,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538857002] [2024-11-17 03:15:50,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:50,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:15:50,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:50,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:15:50,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:15:50,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:50,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 03:15:50,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:50,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:50,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:51,854 INFO L124 PetriNetUnfolderBase]: 17091/23335 cut-off events. [2024-11-17 03:15:51,855 INFO L125 PetriNetUnfolderBase]: For 18204/18204 co-relation queries the response was YES. [2024-11-17 03:15:51,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59198 conditions, 23335 events. 17091/23335 cut-off events. For 18204/18204 co-relation queries the response was YES. Maximal size of possible extension queue 752. Compared 127066 event pairs, 3207 based on Foata normal form. 16/23343 useless extension candidates. Maximal degree in co-relation 59185. Up to 12841 conditions per place. [2024-11-17 03:15:52,018 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 78 selfloop transitions, 6 changer transitions 27/118 dead transitions. [2024-11-17 03:15:52,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 118 transitions, 731 flow [2024-11-17 03:15:52,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:15:52,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:15:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-11-17 03:15:52,020 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2024-11-17 03:15:52,020 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 251 flow. Second operand 6 states and 160 transitions. [2024-11-17 03:15:52,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 118 transitions, 731 flow [2024-11-17 03:15:52,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 118 transitions, 542 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-17 03:15:52,269 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 190 flow [2024-11-17 03:15:52,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2024-11-17 03:15:52,270 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 6 predicate places. [2024-11-17 03:15:52,270 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 190 flow [2024-11-17 03:15:52,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 03:15:52,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:52,270 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:15:52,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:15:52,271 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 03:15:52,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1475884580, now seen corresponding path program 2 times [2024-11-17 03:15:52,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:52,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850971366] [2024-11-17 03:15:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:52,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:54,790 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 03:15:54,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:54,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850971366] [2024-11-17 03:15:54,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850971366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:54,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:54,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-17 03:15:54,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782882788] [2024-11-17 03:15:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:54,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 03:15:54,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 03:15:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-17 03:15:54,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:54,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 190 flow. Second operand has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:15:54,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:54,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:54,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:56,273 INFO L124 PetriNetUnfolderBase]: 9747/13540 cut-off events. [2024-11-17 03:15:56,273 INFO L125 PetriNetUnfolderBase]: For 2623/2623 co-relation queries the response was YES. [2024-11-17 03:15:56,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31970 conditions, 13540 events. 9747/13540 cut-off events. For 2623/2623 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 67843 event pairs, 1939 based on Foata normal form. 16/13552 useless extension candidates. Maximal degree in co-relation 31958. Up to 5850 conditions per place. [2024-11-17 03:15:56,350 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 99 selfloop transitions, 3 changer transitions 51/160 dead transitions. [2024-11-17 03:15:56,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 160 transitions, 808 flow [2024-11-17 03:15:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:15:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:15:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 209 transitions. [2024-11-17 03:15:56,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475 [2024-11-17 03:15:56,352 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 190 flow. Second operand 8 states and 209 transitions. [2024-11-17 03:15:56,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 160 transitions, 808 flow [2024-11-17 03:15:56,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 160 transitions, 790 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-17 03:15:56,356 INFO L231 Difference]: Finished difference. Result has 74 places, 59 transitions, 196 flow [2024-11-17 03:15:56,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=196, PETRI_PLACES=74, PETRI_TRANSITIONS=59} [2024-11-17 03:15:56,357 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2024-11-17 03:15:56,358 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 59 transitions, 196 flow [2024-11-17 03:15:56,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:15:56,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:56,358 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:15:56,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:15:56,359 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 03:15:56,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash 116241644, now seen corresponding path program 3 times [2024-11-17 03:15:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:56,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164303732] [2024-11-17 03:15:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:56,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:56,787 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 03:15:56,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:56,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164303732] [2024-11-17 03:15:56,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164303732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:56,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:56,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:15:56,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139132171] [2024-11-17 03:15:56,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:56,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:15:56,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:56,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:15:56,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:15:56,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:56,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 59 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 03:15:56,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:56,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:56,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:15:58,396 INFO L124 PetriNetUnfolderBase]: 12899/17951 cut-off events. [2024-11-17 03:15:58,396 INFO L125 PetriNetUnfolderBase]: For 6742/6742 co-relation queries the response was YES. [2024-11-17 03:15:58,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43876 conditions, 17951 events. 12899/17951 cut-off events. For 6742/6742 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 95580 event pairs, 2211 based on Foata normal form. 16/17956 useless extension candidates. Maximal degree in co-relation 43861. Up to 10044 conditions per place. [2024-11-17 03:15:58,491 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 58 selfloop transitions, 1 changer transitions 57/123 dead transitions. [2024-11-17 03:15:58,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 123 transitions, 633 flow [2024-11-17 03:15:58,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:15:58,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:15:58,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 158 transitions. [2024-11-17 03:15:58,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47878787878787876 [2024-11-17 03:15:58,493 INFO L175 Difference]: Start difference. First operand has 74 places, 59 transitions, 196 flow. Second operand 6 states and 158 transitions. [2024-11-17 03:15:58,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 123 transitions, 633 flow [2024-11-17 03:15:58,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 123 transitions, 612 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-17 03:15:58,500 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 193 flow [2024-11-17 03:15:58,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=193, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2024-11-17 03:15:58,501 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 12 predicate places. [2024-11-17 03:15:58,502 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 193 flow [2024-11-17 03:15:58,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 03:15:58,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:15:58,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:15:58,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:15:58,503 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 03:15:58,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:15:58,503 INFO L85 PathProgramCache]: Analyzing trace with hash -466178572, now seen corresponding path program 4 times [2024-11-17 03:15:58,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:15:58,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250798639] [2024-11-17 03:15:58,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:15:58,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:15:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:15:58,891 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 03:15:58,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:15:58,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250798639] [2024-11-17 03:15:58,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250798639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:15:58,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:15:58,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:15:58,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312942832] [2024-11-17 03:15:58,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:15:58,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:15:58,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:15:58,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:15:58,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:15:58,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:15:58,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 193 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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 03:15:58,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:15:58,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:15:58,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand