./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d 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/safe019_rmo.opt.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 2ad190c36ab064f1e4bfbebf06775e6b037058a5a86becabf7b70897d3619304 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:35:30,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:35:30,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:35:30,743 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:35:30,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:35:30,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:35:30,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:35:30,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:35:30,776 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:35:30,776 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:35:30,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:35:30,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:35:30,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:35:30,778 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:35:30,779 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:35:30,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:35:30,779 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:35:30,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:35:30,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:35:30,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:35:30,781 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:35:30,785 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:35:30,785 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:35:30,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:35:30,789 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:35:30,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:35:30,789 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:35:30,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:35:30,790 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:35:30,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:35:30,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:35:30,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:35:30,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:35:30,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:35:30,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:35:30,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:35:30,792 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:35:30,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:35:30,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:35:30,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:35:30,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:35:30,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:35:30,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ad190c36ab064f1e4bfbebf06775e6b037058a5a86becabf7b70897d3619304 [2024-11-09 10:35:31,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:35:31,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:35:31,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:35:31,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:35:31,073 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:35:31,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_rmo.opt.i [2024-11-09 10:35:32,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:35:32,784 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:35:32,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_rmo.opt.i [2024-11-09 10:35:32,808 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1533c36/3503f91841df4218a73ab9e49df0fad8/FLAGfc0bf1b03 [2024-11-09 10:35:33,084 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1533c36/3503f91841df4218a73ab9e49df0fad8 [2024-11-09 10:35:33,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:35:33,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:35:33,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:35:33,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:35:33,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:35:33,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360816d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33, skipping insertion in model container [2024-11-09 10:35:33,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:35:33,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:35:33,587 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:35:33,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:35:33,714 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:35:33,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33 WrapperNode [2024-11-09 10:35:33,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:35:33,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:35:33,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:35:33,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:35:33,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,778 INFO L138 Inliner]: procedures = 176, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 138 [2024-11-09 10:35:33,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:35:33,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:35:33,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:35:33,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:35:33,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,826 INFO L175 MemorySlicer]: Split 25 memory accesses to 2 slices as follows [2, 23]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 9 writes are split as follows [0, 9]. [2024-11-09 10:35:33,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:35:33,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:35:33,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:35:33,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:35:33,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (1/1) ... [2024-11-09 10:35:33,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:35:33,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:35:33,894 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) [2024-11-09 10:35:33,901 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 [2024-11-09 10:35:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:35:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:35:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:35:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:35:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:35:33,951 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 10:35:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 10:35:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:35:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 10:35:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:35:33,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:35:33,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:35:33,954 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:35:34,146 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:35:34,148 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:35:34,758 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:35:34,760 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:35:35,416 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:35:35,416 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:35:35,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:35:35 BoogieIcfgContainer [2024-11-09 10:35:35,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:35:35,421 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:35:35,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:35:35,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:35:35,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:35:33" (1/3) ... [2024-11-09 10:35:35,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f917d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:35:35, skipping insertion in model container [2024-11-09 10:35:35,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:35:33" (2/3) ... [2024-11-09 10:35:35,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f917d1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:35:35, skipping insertion in model container [2024-11-09 10:35:35,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:35:35" (3/3) ... [2024-11-09 10:35:35,428 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_rmo.opt.i [2024-11-09 10:35:35,446 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:35:35,446 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-11-09 10:35:35,447 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:35:35,645 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:35:35,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 94 transitions, 204 flow [2024-11-09 10:35:35,757 INFO L124 PetriNetUnfolderBase]: 2/90 cut-off events. [2024-11-09 10:35:35,758 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:35:35,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 365 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2024-11-09 10:35:35,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 94 transitions, 204 flow [2024-11-09 10:35:35,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 90 transitions, 192 flow [2024-11-09 10:35:35,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:35:35,795 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;@247bfdc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:35:35,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2024-11-09 10:35:35,803 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:35:35,803 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-11-09 10:35:35,803 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:35:35,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:35,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 10:35:35,805 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:35,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:35,810 INFO L85 PathProgramCache]: Analyzing trace with hash 805586379, now seen corresponding path program 1 times [2024-11-09 10:35:35,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:35,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256184375] [2024-11-09 10:35:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:36,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:36,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:36,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256184375] [2024-11-09 10:35:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256184375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:36,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:36,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:35:36,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187224808] [2024-11-09 10:35:36,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:36,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:35:36,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:35:36,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:35:36,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 94 [2024-11-09 10:35:36,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 90 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-11-09 10:35:36,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:36,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 94 [2024-11-09 10:35:36,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:45,459 INFO L124 PetriNetUnfolderBase]: 41670/60435 cut-off events. [2024-11-09 10:35:45,460 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-09 10:35:45,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115766 conditions, 60435 events. 41670/60435 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 3712. Compared 492532 event pairs, 41670 based on Foata normal form. 1960/38304 useless extension candidates. Maximal degree in co-relation 115754. Up to 54867 conditions per place. [2024-11-09 10:35:46,182 INFO L140 encePairwiseOnDemand]: 60/94 looper letters, 38 selfloop transitions, 1 changer transitions 0/56 dead transitions. [2024-11-09 10:35:46,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 56 transitions, 202 flow [2024-11-09 10:35:46,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:35:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:35:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 135 transitions. [2024-11-09 10:35:46,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4787234042553192 [2024-11-09 10:35:46,202 INFO L175 Difference]: Start difference. First operand has 101 places, 90 transitions, 192 flow. Second operand 3 states and 135 transitions. [2024-11-09 10:35:46,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 56 transitions, 202 flow [2024-11-09 10:35:46,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 56 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 10:35:46,239 INFO L231 Difference]: Finished difference. Result has 67 places, 56 transitions, 122 flow [2024-11-09 10:35:46,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2024-11-09 10:35:46,248 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -34 predicate places. [2024-11-09 10:35:46,249 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 122 flow [2024-11-09 10:35:46,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-11-09 10:35:46,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:46,250 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 10:35:46,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:35:46,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:46,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:46,252 INFO L85 PathProgramCache]: Analyzing trace with hash 805586380, now seen corresponding path program 1 times [2024-11-09 10:35:46,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:46,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866802402] [2024-11-09 10:35:46,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:46,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:46,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:46,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866802402] [2024-11-09 10:35:46,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866802402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:46,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:46,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:35:46,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324285216] [2024-11-09 10:35:46,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:46,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:35:46,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:46,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:35:46,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:35:46,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 94 [2024-11-09 10:35:46,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-11-09 10:35:46,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:46,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 94 [2024-11-09 10:35:46,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:48,235 INFO L124 PetriNetUnfolderBase]: 4591/7209 cut-off events. [2024-11-09 10:35:48,235 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:35:48,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13643 conditions, 7209 events. 4591/7209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 50439 event pairs, 4591 based on Foata normal form. 0/6782 useless extension candidates. Maximal degree in co-relation 13637. Up to 6302 conditions per place. [2024-11-09 10:35:48,278 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 26 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-09 10:35:48,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 156 flow [2024-11-09 10:35:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:35:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:35:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-09 10:35:48,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3617021276595745 [2024-11-09 10:35:48,280 INFO L175 Difference]: Start difference. First operand has 67 places, 56 transitions, 122 flow. Second operand 3 states and 102 transitions. [2024-11-09 10:35:48,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 156 flow [2024-11-09 10:35:48,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 45 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:35:48,282 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 99 flow [2024-11-09 10:35:48,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=55, 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=99, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2024-11-09 10:35:48,283 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -44 predicate places. [2024-11-09 10:35:48,283 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 99 flow [2024-11-09 10:35:48,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-11-09 10:35:48,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:48,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:35:48,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:35:48,284 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:48,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:48,285 INFO L85 PathProgramCache]: Analyzing trace with hash 378831121, now seen corresponding path program 1 times [2024-11-09 10:35:48,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:48,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498537751] [2024-11-09 10:35:48,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:48,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:48,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:48,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:48,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498537751] [2024-11-09 10:35:48,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498537751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:48,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:48,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:35:48,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988365084] [2024-11-09 10:35:48,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:48,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:35:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:48,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:35:48,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:35:48,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 94 [2024-11-09 10:35:48,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:35:48,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:48,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 94 [2024-11-09 10:35:48,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:49,450 INFO L124 PetriNetUnfolderBase]: 3961/6318 cut-off events. [2024-11-09 10:35:49,450 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:35:49,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11907 conditions, 6318 events. 3961/6318 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 44193 event pairs, 781 based on Foata normal form. 0/6062 useless extension candidates. Maximal degree in co-relation 11900. Up to 4477 conditions per place. [2024-11-09 10:35:49,489 INFO L140 encePairwiseOnDemand]: 90/94 looper letters, 41 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-11-09 10:35:49,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 60 transitions, 219 flow [2024-11-09 10:35:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:35:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:35:49,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2024-11-09 10:35:49,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3829787234042553 [2024-11-09 10:35:49,491 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 99 flow. Second operand 3 states and 108 transitions. [2024-11-09 10:35:49,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 60 transitions, 219 flow [2024-11-09 10:35:49,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 60 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:35:49,493 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 108 flow [2024-11-09 10:35:49,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2024-11-09 10:35:49,494 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -43 predicate places. [2024-11-09 10:35:49,494 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 108 flow [2024-11-09 10:35:49,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:35:49,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:49,495 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:35:49,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:35:49,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:49,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1015373052, now seen corresponding path program 1 times [2024-11-09 10:35:49,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:49,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826322562] [2024-11-09 10:35:49,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:49,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:49,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:49,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826322562] [2024-11-09 10:35:49,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826322562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:49,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:49,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:35:49,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121300933] [2024-11-09 10:35:49,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:49,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:35:49,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:49,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:35:49,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:35:49,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 94 [2024-11-09 10:35:49,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-09 10:35:49,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:49,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 94 [2024-11-09 10:35:49,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:50,563 INFO L124 PetriNetUnfolderBase]: 3664/5913 cut-off events. [2024-11-09 10:35:50,564 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2024-11-09 10:35:50,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11831 conditions, 5913 events. 3664/5913 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 41309 event pairs, 709 based on Foata normal form. 0/5873 useless extension candidates. Maximal degree in co-relation 11822. Up to 4071 conditions per place. [2024-11-09 10:35:50,600 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 40 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2024-11-09 10:35:50,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 222 flow [2024-11-09 10:35:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:35:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:35:50,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-11-09 10:35:50,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3377659574468085 [2024-11-09 10:35:50,603 INFO L175 Difference]: Start difference. First operand has 58 places, 44 transitions, 108 flow. Second operand 4 states and 127 transitions. [2024-11-09 10:35:50,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 222 flow [2024-11-09 10:35:50,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:35:50,609 INFO L231 Difference]: Finished difference. Result has 58 places, 43 transitions, 104 flow [2024-11-09 10:35:50,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=43} [2024-11-09 10:35:50,610 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -43 predicate places. [2024-11-09 10:35:50,610 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 43 transitions, 104 flow [2024-11-09 10:35:50,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-09 10:35:50,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:50,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:35:50,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:35:50,613 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:50,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:50,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1015373051, now seen corresponding path program 1 times [2024-11-09 10:35:50,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:50,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781617950] [2024-11-09 10:35:50,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:50,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:50,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:50,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:50,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781617950] [2024-11-09 10:35:50,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781617950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:50,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:50,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:35:50,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671917616] [2024-11-09 10:35:50,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:50,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:35:50,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:50,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:35:50,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:35:50,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 94 [2024-11-09 10:35:50,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 43 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-09 10:35:50,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:50,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 94 [2024-11-09 10:35:50,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:51,716 INFO L124 PetriNetUnfolderBase]: 3367/5412 cut-off events. [2024-11-09 10:35:51,717 INFO L125 PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES. [2024-11-09 10:35:51,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10817 conditions, 5412 events. 3367/5412 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 35866 event pairs, 1021 based on Foata normal form. 108/5480 useless extension candidates. Maximal degree in co-relation 10808. Up to 3666 conditions per place. [2024-11-09 10:35:51,758 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 39 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2024-11-09 10:35:51,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 58 transitions, 216 flow [2024-11-09 10:35:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:35:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:35:51,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-11-09 10:35:51,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3351063829787234 [2024-11-09 10:35:51,761 INFO L175 Difference]: Start difference. First operand has 58 places, 43 transitions, 104 flow. Second operand 4 states and 126 transitions. [2024-11-09 10:35:51,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 58 transitions, 216 flow [2024-11-09 10:35:51,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 58 transitions, 211 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 10:35:51,763 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 99 flow [2024-11-09 10:35:51,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2024-11-09 10:35:51,764 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -44 predicate places. [2024-11-09 10:35:51,765 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 99 flow [2024-11-09 10:35:51,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 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) [2024-11-09 10:35:51,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:51,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:35:51,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:35:51,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:51,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:51,769 INFO L85 PathProgramCache]: Analyzing trace with hash -923496154, now seen corresponding path program 1 times [2024-11-09 10:35:51,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:51,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031497234] [2024-11-09 10:35:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:51,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:51,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:51,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:51,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031497234] [2024-11-09 10:35:51,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031497234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:51,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:51,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:35:51,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881255044] [2024-11-09 10:35:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:51,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:35:51,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:51,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:35:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:35:51,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 94 [2024-11-09 10:35:51,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:35:51,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:51,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 94 [2024-11-09 10:35:51,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:52,825 INFO L124 PetriNetUnfolderBase]: 3367/5409 cut-off events. [2024-11-09 10:35:52,826 INFO L125 PetriNetUnfolderBase]: For 312/312 co-relation queries the response was YES. [2024-11-09 10:35:52,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10813 conditions, 5409 events. 3367/5409 cut-off events. For 312/312 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 37128 event pairs, 3367 based on Foata normal form. 144/5414 useless extension candidates. Maximal degree in co-relation 10805. Up to 4646 conditions per place. [2024-11-09 10:35:52,862 INFO L140 encePairwiseOnDemand]: 92/94 looper letters, 23 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-11-09 10:35:52,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 41 transitions, 147 flow [2024-11-09 10:35:52,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:35:52,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:35:52,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-09 10:35:52,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3049645390070922 [2024-11-09 10:35:52,864 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 99 flow. Second operand 3 states and 86 transitions. [2024-11-09 10:35:52,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 41 transitions, 147 flow [2024-11-09 10:35:52,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 41 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:35:52,868 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 94 flow [2024-11-09 10:35:52,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2024-11-09 10:35:52,870 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -45 predicate places. [2024-11-09 10:35:52,870 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 94 flow [2024-11-09 10:35:52,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:35:52,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:52,870 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:35:52,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:35:52,871 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:52,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:52,873 INFO L85 PathProgramCache]: Analyzing trace with hash -923497915, now seen corresponding path program 1 times [2024-11-09 10:35:52,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:52,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514506209] [2024-11-09 10:35:52,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:52,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:53,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514506209] [2024-11-09 10:35:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514506209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:53,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:53,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:35:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012107428] [2024-11-09 10:35:53,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:53,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:35:53,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:53,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:35:53,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:35:53,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 94 [2024-11-09 10:35:53,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2024-11-09 10:35:53,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:53,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 94 [2024-11-09 10:35:53,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:54,826 INFO L124 PetriNetUnfolderBase]: 5559/8802 cut-off events. [2024-11-09 10:35:54,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:35:54,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17650 conditions, 8802 events. 5559/8802 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 60528 event pairs, 711 based on Foata normal form. 0/8564 useless extension candidates. Maximal degree in co-relation 17642. Up to 4327 conditions per place. [2024-11-09 10:35:54,860 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 40 selfloop transitions, 2 changer transitions 54/110 dead transitions. [2024-11-09 10:35:54,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 110 transitions, 444 flow [2024-11-09 10:35:54,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:35:54,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:35:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 250 transitions. [2024-11-09 10:35:54,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3324468085106383 [2024-11-09 10:35:54,862 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 94 flow. Second operand 8 states and 250 transitions. [2024-11-09 10:35:54,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 110 transitions, 444 flow [2024-11-09 10:35:54,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 110 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:35:54,864 INFO L231 Difference]: Finished difference. Result has 66 places, 39 transitions, 107 flow [2024-11-09 10:35:54,864 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=107, PETRI_PLACES=66, PETRI_TRANSITIONS=39} [2024-11-09 10:35:54,865 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -35 predicate places. [2024-11-09 10:35:54,865 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 39 transitions, 107 flow [2024-11-09 10:35:54,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2024-11-09 10:35:54,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:54,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:35:54,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:35:54,866 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:54,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:54,867 INFO L85 PathProgramCache]: Analyzing trace with hash 758584036, now seen corresponding path program 1 times [2024-11-09 10:35:54,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:54,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167164385] [2024-11-09 10:35:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:54,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:55,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:55,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:55,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167164385] [2024-11-09 10:35:55,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167164385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:55,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:55,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:35:55,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518878605] [2024-11-09 10:35:55,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:55,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:35:55,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:55,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:35:55,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:35:55,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 94 [2024-11-09 10:35:55,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 39 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-09 10:35:55,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:55,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 94 [2024-11-09 10:35:55,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:56,842 INFO L124 PetriNetUnfolderBase]: 9775/14895 cut-off events. [2024-11-09 10:35:56,842 INFO L125 PetriNetUnfolderBase]: For 1642/1642 co-relation queries the response was YES. [2024-11-09 10:35:56,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32313 conditions, 14895 events. 9775/14895 cut-off events. For 1642/1642 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 102781 event pairs, 1223 based on Foata normal form. 240/15003 useless extension candidates. Maximal degree in co-relation 32299. Up to 6241 conditions per place. [2024-11-09 10:35:56,944 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 49 selfloop transitions, 4 changer transitions 49/114 dead transitions. [2024-11-09 10:35:56,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 114 transitions, 492 flow [2024-11-09 10:35:56,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:35:56,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:35:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2024-11-09 10:35:56,946 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3191489361702128 [2024-11-09 10:35:56,946 INFO L175 Difference]: Start difference. First operand has 66 places, 39 transitions, 107 flow. Second operand 8 states and 240 transitions. [2024-11-09 10:35:56,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 114 transitions, 492 flow [2024-11-09 10:35:57,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 114 transitions, 470 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-09 10:35:57,076 INFO L231 Difference]: Finished difference. Result has 67 places, 41 transitions, 137 flow [2024-11-09 10:35:57,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=137, PETRI_PLACES=67, PETRI_TRANSITIONS=41} [2024-11-09 10:35:57,077 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -34 predicate places. [2024-11-09 10:35:57,077 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 41 transitions, 137 flow [2024-11-09 10:35:57,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-09 10:35:57,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:57,078 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] [2024-11-09 10:35:57,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:35:57,078 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:57,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:57,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1424105999, now seen corresponding path program 1 times [2024-11-09 10:35:57,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:57,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546340472] [2024-11-09 10:35:57,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:57,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:57,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:57,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:57,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546340472] [2024-11-09 10:35:57,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546340472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:57,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:57,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:35:57,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743703376] [2024-11-09 10:35:57,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:57,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:35:57,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:35:57,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:35:57,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 94 [2024-11-09 10:35:57,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 41 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-09 10:35:57,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:57,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 94 [2024-11-09 10:35:57,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:35:58,562 INFO L124 PetriNetUnfolderBase]: 4197/6967 cut-off events. [2024-11-09 10:35:58,562 INFO L125 PetriNetUnfolderBase]: For 3808/3824 co-relation queries the response was YES. [2024-11-09 10:35:58,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16001 conditions, 6967 events. 4197/6967 cut-off events. For 3808/3824 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 49160 event pairs, 1689 based on Foata normal form. 180/6947 useless extension candidates. Maximal degree in co-relation 15985. Up to 4093 conditions per place. [2024-11-09 10:35:58,613 INFO L140 encePairwiseOnDemand]: 89/94 looper letters, 34 selfloop transitions, 2 changer transitions 37/90 dead transitions. [2024-11-09 10:35:58,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 90 transitions, 401 flow [2024-11-09 10:35:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:35:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:35:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 215 transitions. [2024-11-09 10:35:58,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32674772036474165 [2024-11-09 10:35:58,615 INFO L175 Difference]: Start difference. First operand has 67 places, 41 transitions, 137 flow. Second operand 7 states and 215 transitions. [2024-11-09 10:35:58,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 90 transitions, 401 flow [2024-11-09 10:35:58,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 90 transitions, 384 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-09 10:35:58,632 INFO L231 Difference]: Finished difference. Result has 70 places, 41 transitions, 142 flow [2024-11-09 10:35:58,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=41} [2024-11-09 10:35:58,633 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -31 predicate places. [2024-11-09 10:35:58,633 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 41 transitions, 142 flow [2024-11-09 10:35:58,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-09 10:35:58,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:35:58,634 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] [2024-11-09 10:35:58,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:35:58,634 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:35:58,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:35:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash 228130950, now seen corresponding path program 1 times [2024-11-09 10:35:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:35:58,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146113159] [2024-11-09 10:35:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:35:58,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:35:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:35:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:35:58,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:35:58,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146113159] [2024-11-09 10:35:58,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146113159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:35:58,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:35:58,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:35:58,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417933723] [2024-11-09 10:35:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:35:58,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:35:58,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:35:58,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:35:58,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:35:58,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 94 [2024-11-09 10:35:58,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 41 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-09 10:35:58,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:35:58,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 94 [2024-11-09 10:35:58,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:01,585 INFO L124 PetriNetUnfolderBase]: 11150/17193 cut-off events. [2024-11-09 10:36:01,585 INFO L125 PetriNetUnfolderBase]: For 10102/10102 co-relation queries the response was YES. [2024-11-09 10:36:01,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39935 conditions, 17193 events. 11150/17193 cut-off events. For 10102/10102 co-relation queries the response was YES. Maximal size of possible extension queue 956. Compared 125912 event pairs, 3071 based on Foata normal form. 360/17404 useless extension candidates. Maximal degree in co-relation 39916. Up to 5123 conditions per place. [2024-11-09 10:36:01,663 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 42 selfloop transitions, 3 changer transitions 90/147 dead transitions. [2024-11-09 10:36:01,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 147 transitions, 696 flow [2024-11-09 10:36:01,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 10:36:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 10:36:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 324 transitions. [2024-11-09 10:36:01,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31334622823984526 [2024-11-09 10:36:01,666 INFO L175 Difference]: Start difference. First operand has 70 places, 41 transitions, 142 flow. Second operand 11 states and 324 transitions. [2024-11-09 10:36:01,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 147 transitions, 696 flow [2024-11-09 10:36:01,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 147 transitions, 656 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-09 10:36:01,793 INFO L231 Difference]: Finished difference. Result has 79 places, 41 transitions, 157 flow [2024-11-09 10:36:01,793 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=157, PETRI_PLACES=79, PETRI_TRANSITIONS=41} [2024-11-09 10:36:01,794 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -22 predicate places. [2024-11-09 10:36:01,794 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 41 transitions, 157 flow [2024-11-09 10:36:01,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-09 10:36:01,795 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:01,795 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:01,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 10:36:01,795 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:36:01,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash 622129592, now seen corresponding path program 1 times [2024-11-09 10:36:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:01,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902146124] [2024-11-09 10:36:01,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:01,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:02,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:02,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902146124] [2024-11-09 10:36:02,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902146124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:02,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:02,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:36:02,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146580589] [2024-11-09 10:36:02,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:02,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:36:02,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:02,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:36:02,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:36:02,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 94 [2024-11-09 10:36:02,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 41 transitions, 157 flow. Second operand has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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) [2024-11-09 10:36:02,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:02,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 94 [2024-11-09 10:36:02,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:03,991 INFO L124 PetriNetUnfolderBase]: 5638/9231 cut-off events. [2024-11-09 10:36:03,992 INFO L125 PetriNetUnfolderBase]: For 12726/12800 co-relation queries the response was YES. [2024-11-09 10:36:04,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22329 conditions, 9231 events. 5638/9231 cut-off events. For 12726/12800 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 68957 event pairs, 2851 based on Foata normal form. 252/9138 useless extension candidates. Maximal degree in co-relation 22306. Up to 6288 conditions per place. [2024-11-09 10:36:04,041 INFO L140 encePairwiseOnDemand]: 86/94 looper letters, 39 selfloop transitions, 7 changer transitions 31/94 dead transitions. [2024-11-09 10:36:04,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 94 transitions, 454 flow [2024-11-09 10:36:04,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:36:04,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:36:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 239 transitions. [2024-11-09 10:36:04,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3178191489361702 [2024-11-09 10:36:04,043 INFO L175 Difference]: Start difference. First operand has 79 places, 41 transitions, 157 flow. Second operand 8 states and 239 transitions. [2024-11-09 10:36:04,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 94 transitions, 454 flow [2024-11-09 10:36:04,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 94 transitions, 415 flow, removed 18 selfloop flow, removed 9 redundant places. [2024-11-09 10:36:04,090 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 193 flow [2024-11-09 10:36:04,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=193, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2024-11-09 10:36:04,091 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -26 predicate places. [2024-11-09 10:36:04,091 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 193 flow [2024-11-09 10:36:04,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.142857142857142) internal successors, (155), 7 states have internal predecessors, (155), 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) [2024-11-09 10:36:04,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:04,092 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] [2024-11-09 10:36:04,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 10:36:04,092 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:36:04,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1409999577, now seen corresponding path program 1 times [2024-11-09 10:36:04,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:04,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773097552] [2024-11-09 10:36:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:04,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:05,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:05,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:05,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773097552] [2024-11-09 10:36:05,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773097552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:05,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:05,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 10:36:05,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325265813] [2024-11-09 10:36:05,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:05,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 10:36:05,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:05,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 10:36:05,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-09 10:36:05,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 94 [2024-11-09 10:36:05,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 193 flow. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 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) [2024-11-09 10:36:05,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:05,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 94 [2024-11-09 10:36:05,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:06,518 INFO L124 PetriNetUnfolderBase]: 5025/8347 cut-off events. [2024-11-09 10:36:06,519 INFO L125 PetriNetUnfolderBase]: For 10153/10279 co-relation queries the response was YES. [2024-11-09 10:36:06,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21999 conditions, 8347 events. 5025/8347 cut-off events. For 10153/10279 co-relation queries the response was YES. Maximal size of possible extension queue 489. Compared 61534 event pairs, 2982 based on Foata normal form. 198/8233 useless extension candidates. Maximal degree in co-relation 21977. Up to 5065 conditions per place. [2024-11-09 10:36:06,574 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 46 selfloop transitions, 7 changer transitions 33/103 dead transitions. [2024-11-09 10:36:06,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 103 transitions, 556 flow [2024-11-09 10:36:06,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:36:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:36:06,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 243 transitions. [2024-11-09 10:36:06,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32313829787234044 [2024-11-09 10:36:06,576 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 193 flow. Second operand 8 states and 243 transitions. [2024-11-09 10:36:06,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 103 transitions, 556 flow [2024-11-09 10:36:06,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 103 transitions, 548 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-09 10:36:06,596 INFO L231 Difference]: Finished difference. Result has 82 places, 49 transitions, 235 flow [2024-11-09 10:36:06,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=235, PETRI_PLACES=82, PETRI_TRANSITIONS=49} [2024-11-09 10:36:06,597 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -19 predicate places. [2024-11-09 10:36:06,597 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 49 transitions, 235 flow [2024-11-09 10:36:06,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 8 states have internal predecessors, (176), 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) [2024-11-09 10:36:06,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:06,598 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] [2024-11-09 10:36:06,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 10:36:06,598 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:36:06,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:06,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1287882245, now seen corresponding path program 1 times [2024-11-09 10:36:06,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:06,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333083105] [2024-11-09 10:36:06,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:06,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:06,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:06,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:06,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333083105] [2024-11-09 10:36:06,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333083105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:06,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:06,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:36:06,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833181902] [2024-11-09 10:36:06,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:06,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:36:06,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:06,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:36:06,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:36:06,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 94 [2024-11-09 10:36:06,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 49 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:36:06,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:06,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 94 [2024-11-09 10:36:06,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:09,137 INFO L124 PetriNetUnfolderBase]: 16249/23439 cut-off events. [2024-11-09 10:36:09,138 INFO L125 PetriNetUnfolderBase]: For 25244/25435 co-relation queries the response was YES. [2024-11-09 10:36:09,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62872 conditions, 23439 events. 16249/23439 cut-off events. For 25244/25435 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 150845 event pairs, 2175 based on Foata normal form. 776/23934 useless extension candidates. Maximal degree in co-relation 62844. Up to 14081 conditions per place. [2024-11-09 10:36:09,285 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 76 selfloop transitions, 6 changer transitions 1/95 dead transitions. [2024-11-09 10:36:09,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 95 transitions, 629 flow [2024-11-09 10:36:09,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:36:09,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:36:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-09 10:36:09,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3324468085106383 [2024-11-09 10:36:09,286 INFO L175 Difference]: Start difference. First operand has 82 places, 49 transitions, 235 flow. Second operand 4 states and 125 transitions. [2024-11-09 10:36:09,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 95 transitions, 629 flow [2024-11-09 10:36:09,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 95 transitions, 602 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-09 10:36:09,337 INFO L231 Difference]: Finished difference. Result has 78 places, 53 transitions, 262 flow [2024-11-09 10:36:09,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=78, PETRI_TRANSITIONS=53} [2024-11-09 10:36:09,338 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -23 predicate places. [2024-11-09 10:36:09,338 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 53 transitions, 262 flow [2024-11-09 10:36:09,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:36:09,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:09,338 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] [2024-11-09 10:36:09,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 10:36:09,339 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:36:09,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:09,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1245927298, now seen corresponding path program 1 times [2024-11-09 10:36:09,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:09,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093796045] [2024-11-09 10:36:09,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:09,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:09,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:09,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:09,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093796045] [2024-11-09 10:36:09,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093796045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:09,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:09,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:36:09,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730696654] [2024-11-09 10:36:09,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:09,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:36:09,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:09,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:36:09,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:36:09,565 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 94 [2024-11-09 10:36:09,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 53 transitions, 262 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-09 10:36:09,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:09,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 94 [2024-11-09 10:36:09,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:11,599 INFO L124 PetriNetUnfolderBase]: 12136/17656 cut-off events. [2024-11-09 10:36:11,599 INFO L125 PetriNetUnfolderBase]: For 17841/17985 co-relation queries the response was YES. [2024-11-09 10:36:11,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50510 conditions, 17656 events. 12136/17656 cut-off events. For 17841/17985 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 108469 event pairs, 958 based on Foata normal form. 737/18198 useless extension candidates. Maximal degree in co-relation 50483. Up to 8837 conditions per place. [2024-11-09 10:36:11,729 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 85 selfloop transitions, 10 changer transitions 1/108 dead transitions. [2024-11-09 10:36:11,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 108 transitions, 709 flow [2024-11-09 10:36:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:36:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:36:11,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-09 10:36:11,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33617021276595743 [2024-11-09 10:36:11,731 INFO L175 Difference]: Start difference. First operand has 78 places, 53 transitions, 262 flow. Second operand 5 states and 158 transitions. [2024-11-09 10:36:11,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 108 transitions, 709 flow [2024-11-09 10:36:11,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 108 transitions, 698 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 10:36:11,743 INFO L231 Difference]: Finished difference. Result has 82 places, 57 transitions, 314 flow [2024-11-09 10:36:11,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=82, PETRI_TRANSITIONS=57} [2024-11-09 10:36:11,744 INFO L277 CegarLoopForPetriNet]: 101 programPoint places, -19 predicate places. [2024-11-09 10:36:11,744 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 57 transitions, 314 flow [2024-11-09 10:36:11,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-09 10:36:11,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:11,744 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] [2024-11-09 10:36:11,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 10:36:11,745 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2024-11-09 10:36:11,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash 353154563, now seen corresponding path program 1 times [2024-11-09 10:36:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:11,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398869828] [2024-11-09 10:36:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:12,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398869828] [2024-11-09 10:36:12,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398869828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:12,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:12,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:36:12,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888834211] [2024-11-09 10:36:12,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:12,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:36:12,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:12,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:36:12,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:36:12,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 94 [2024-11-09 10:36:12,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 57 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-09 10:36:12,134 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:12,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 94 [2024-11-09 10:36:12,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand