./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:10:11,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:10:12,012 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:10:12,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:10:12,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:10:12,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:10:12,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:10:12,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:10:12,038 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:10:12,038 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:10:12,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:10:12,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:10:12,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:10:12,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:10:12,040 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:10:12,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:10:12,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:10:12,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:10:12,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:10:12,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:10:12,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:10:12,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:10:12,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:10:12,046 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:10:12,046 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:10:12,046 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:10:12,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:10:12,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:10:12,047 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:10:12,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:10:12,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:10:12,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:10:12,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:10:12,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:10:12,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:10:12,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:10:12,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:10:12,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:10:12,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:10:12,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:10:12,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:10:12,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:10:12,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc57c42fd552df471a50a3f823d776d12ae5a02a1da1686aaab749af4f270bf [2024-11-16 19:10:12,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:10:12,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:10:12,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:10:12,306 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:10:12,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:10:12,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2024-11-16 19:10:13,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:10:13,995 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:10:13,995 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i [2024-11-16 19:10:14,012 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a3c23a2/330aa978c6e64ef599cb3df1873ae991/FLAG84eb12017 [2024-11-16 19:10:14,024 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a3c23a2/330aa978c6e64ef599cb3df1873ae991 [2024-11-16 19:10:14,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:10:14,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:10:14,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:10:14,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:10:14,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:10:14,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785d1f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14, skipping insertion in model container [2024-11-16 19:10:14,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:10:14,288 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2024-11-16 19:10:14,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:10:14,525 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:10:14,539 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix018_tso.oepc.i[949,962] [2024-11-16 19:10:14,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:10:14,687 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:10:14,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14 WrapperNode [2024-11-16 19:10:14,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:10:14,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:10:14,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:10:14,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:10:14,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,763 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,802 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2024-11-16 19:10:14,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:10:14,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:10:14,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:10:14,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:10:14,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,853 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 19:10:14,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,861 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:10:14,881 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:10:14,881 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:10:14,881 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:10:14,882 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (1/1) ... [2024-11-16 19:10:14,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:10:14,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:10:14,922 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) [2024-11-16 19:10:14,925 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 [2024-11-16 19:10:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:10:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:10:14,974 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:10:14,975 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:10:14,975 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:10:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:10:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 19:10:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 19:10:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-16 19:10:14,976 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-16 19:10:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:10:14,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:10:14,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:10:14,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:10:14,980 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:10:15,150 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:10:15,152 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:10:15,537 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:10:15,538 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:10:15,766 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:10:15,767 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:10:15,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:10:15 BoogieIcfgContainer [2024-11-16 19:10:15,767 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:10:15,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:10:15,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:10:15,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:10:15,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:10:14" (1/3) ... [2024-11-16 19:10:15,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8a9214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:10:15, skipping insertion in model container [2024-11-16 19:10:15,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:10:14" (2/3) ... [2024-11-16 19:10:15,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8a9214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:10:15, skipping insertion in model container [2024-11-16 19:10:15,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:10:15" (3/3) ... [2024-11-16 19:10:15,778 INFO L112 eAbstractionObserver]: Analyzing ICFG mix018_tso.oepc.i [2024-11-16 19:10:15,795 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:10:15,796 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:10:15,796 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:10:15,862 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:10:15,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-16 19:10:15,942 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-16 19:10:15,942 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:10:15,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 88 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-16 19:10:15,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-16 19:10:15,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-16 19:10:15,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:10:15,969 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=LoopHeads, 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;@68da90a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:10:15,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-16 19:10:15,976 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:10:15,977 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-16 19:10:15,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:10:15,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:15,978 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-16 19:10:15,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:15,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash -41003546, now seen corresponding path program 1 times [2024-11-16 19:10:15,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:15,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146092028] [2024-11-16 19:10:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:15,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:16,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:16,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146092028] [2024-11-16 19:10:16,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146092028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:16,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:16,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 19:10:16,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439257837] [2024-11-16 19:10:16,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:16,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:10:16,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:16,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:10:16,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:10:16,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:16,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-16 19:10:16,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:16,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:16,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:23,081 INFO L124 PetriNetUnfolderBase]: 45383/59923 cut-off events. [2024-11-16 19:10:23,082 INFO L125 PetriNetUnfolderBase]: For 243/243 co-relation queries the response was YES. [2024-11-16 19:10:23,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119955 conditions, 59923 events. 45383/59923 cut-off events. For 243/243 co-relation queries the response was YES. Maximal size of possible extension queue 1776. Compared 357355 event pairs, 5613 based on Foata normal form. 1512/61377 useless extension candidates. Maximal degree in co-relation 119943. Up to 51531 conditions per place. [2024-11-16 19:10:23,458 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 61 selfloop transitions, 2 changer transitions 2/71 dead transitions. [2024-11-16 19:10:23,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 71 transitions, 290 flow [2024-11-16 19:10:23,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:10:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:10:23,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-11-16 19:10:23,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-16 19:10:23,471 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 98 transitions. [2024-11-16 19:10:23,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 71 transitions, 290 flow [2024-11-16 19:10:23,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 71 transitions, 284 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 19:10:23,480 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-16 19:10:23,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, 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=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-16 19:10:23,487 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-16 19:10:23,487 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-16 19:10:23,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-16 19:10:23,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:23,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:23,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:10:23,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:23,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:23,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1360299801, now seen corresponding path program 1 times [2024-11-16 19:10:23,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:23,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203020822] [2024-11-16 19:10:23,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:23,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:23,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:23,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203020822] [2024-11-16 19:10:23,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203020822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:23,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:23,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:10:23,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885591176] [2024-11-16 19:10:23,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:23,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:10:23,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:10:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:10:23,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:23,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:10:23,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:23,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:23,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:27,741 INFO L124 PetriNetUnfolderBase]: 36511/51135 cut-off events. [2024-11-16 19:10:27,741 INFO L125 PetriNetUnfolderBase]: For 1872/1872 co-relation queries the response was YES. [2024-11-16 19:10:27,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102245 conditions, 51135 events. 36511/51135 cut-off events. For 1872/1872 co-relation queries the response was YES. Maximal size of possible extension queue 1639. Compared 331249 event pairs, 4407 based on Foata normal form. 1512/52600 useless extension candidates. Maximal degree in co-relation 102235. Up to 29929 conditions per place. [2024-11-16 19:10:28,266 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 75 selfloop transitions, 6 changer transitions 1/88 dead transitions. [2024-11-16 19:10:28,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 88 transitions, 362 flow [2024-11-16 19:10:28,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:10:28,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:10:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-11-16 19:10:28,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2024-11-16 19:10:28,272 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 4 states and 124 transitions. [2024-11-16 19:10:28,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 88 transitions, 362 flow [2024-11-16 19:10:28,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 88 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:10:28,277 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 134 flow [2024-11-16 19:10:28,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-11-16 19:10:28,279 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-11-16 19:10:28,279 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 134 flow [2024-11-16 19:10:28,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:10:28,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:28,280 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] [2024-11-16 19:10:28,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:10:28,282 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:28,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:28,285 INFO L85 PathProgramCache]: Analyzing trace with hash 397281930, now seen corresponding path program 1 times [2024-11-16 19:10:28,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:28,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028553966] [2024-11-16 19:10:28,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:28,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:28,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:28,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:28,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028553966] [2024-11-16 19:10:28,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028553966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:28,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:28,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:10:28,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780544242] [2024-11-16 19:10:28,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:28,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:10:28,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:10:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:10:28,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:28,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-16 19:10:28,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:28,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:28,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:31,185 INFO L124 PetriNetUnfolderBase]: 23071/32511 cut-off events. [2024-11-16 19:10:31,186 INFO L125 PetriNetUnfolderBase]: For 6336/6336 co-relation queries the response was YES. [2024-11-16 19:10:31,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72887 conditions, 32511 events. 23071/32511 cut-off events. For 6336/6336 co-relation queries the response was YES. Maximal size of possible extension queue 861. Compared 196830 event pairs, 2563 based on Foata normal form. 1192/33656 useless extension candidates. Maximal degree in co-relation 72875. Up to 13513 conditions per place. [2024-11-16 19:10:31,412 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 97 selfloop transitions, 10 changer transitions 1/114 dead transitions. [2024-11-16 19:10:31,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 114 transitions, 515 flow [2024-11-16 19:10:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:10:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:10:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-11-16 19:10:31,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6530612244897959 [2024-11-16 19:10:31,415 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 134 flow. Second operand 5 states and 160 transitions. [2024-11-16 19:10:31,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 114 transitions, 515 flow [2024-11-16 19:10:31,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 114 transitions, 504 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-16 19:10:31,429 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 186 flow [2024-11-16 19:10:31,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=186, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-11-16 19:10:31,430 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-11-16 19:10:31,431 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 186 flow [2024-11-16 19:10:31,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-11-16 19:10:31,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:31,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:31,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:10:31,432 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:31,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash -947023093, now seen corresponding path program 1 times [2024-11-16 19:10:31,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:31,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195617372] [2024-11-16 19:10:31,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:31,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:32,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:32,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195617372] [2024-11-16 19:10:32,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195617372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:32,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:32,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:10:32,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892827717] [2024-11-16 19:10:32,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:32,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:10:32,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:32,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:10:32,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:10:32,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:32,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 186 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2024-11-16 19:10:32,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:32,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:32,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:33,302 INFO L124 PetriNetUnfolderBase]: 13599/18975 cut-off events. [2024-11-16 19:10:33,303 INFO L125 PetriNetUnfolderBase]: For 11710/11710 co-relation queries the response was YES. [2024-11-16 19:10:33,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46679 conditions, 18975 events. 13599/18975 cut-off events. For 11710/11710 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 102981 event pairs, 2215 based on Foata normal form. 584/19512 useless extension candidates. Maximal degree in co-relation 46665. Up to 5388 conditions per place. [2024-11-16 19:10:33,415 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 117 selfloop transitions, 14 changer transitions 1/138 dead transitions. [2024-11-16 19:10:33,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 138 transitions, 674 flow [2024-11-16 19:10:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:10:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:10:33,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 194 transitions. [2024-11-16 19:10:33,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6598639455782312 [2024-11-16 19:10:33,418 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 186 flow. Second operand 6 states and 194 transitions. [2024-11-16 19:10:33,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 138 transitions, 674 flow [2024-11-16 19:10:33,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 138 transitions, 644 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-16 19:10:33,556 INFO L231 Difference]: Finished difference. Result has 63 places, 54 transitions, 236 flow [2024-11-16 19:10:33,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=236, PETRI_PLACES=63, PETRI_TRANSITIONS=54} [2024-11-16 19:10:33,558 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-16 19:10:33,558 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 54 transitions, 236 flow [2024-11-16 19:10:33,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2024-11-16 19:10:33,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:33,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:33,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:10:33,559 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:33,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:33,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2020151, now seen corresponding path program 1 times [2024-11-16 19:10:33,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:33,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151991341] [2024-11-16 19:10:33,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:33,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:33,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:33,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151991341] [2024-11-16 19:10:33,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151991341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:33,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:33,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:10:33,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420760180] [2024-11-16 19:10:33,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:33,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:10:33,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:33,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:10:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:10:33,980 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:33,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 54 transitions, 236 flow. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 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) [2024-11-16 19:10:33,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:33,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:33,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:35,343 INFO L124 PetriNetUnfolderBase]: 10399/14255 cut-off events. [2024-11-16 19:10:35,343 INFO L125 PetriNetUnfolderBase]: For 11302/11302 co-relation queries the response was YES. [2024-11-16 19:10:35,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36424 conditions, 14255 events. 10399/14255 cut-off events. For 11302/11302 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 73800 event pairs, 2043 based on Foata normal form. 152/14360 useless extension candidates. Maximal degree in co-relation 36409. Up to 5376 conditions per place. [2024-11-16 19:10:35,442 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 101 selfloop transitions, 18 changer transitions 1/126 dead transitions. [2024-11-16 19:10:35,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 126 transitions, 636 flow [2024-11-16 19:10:35,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:10:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:10:35,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2024-11-16 19:10:35,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5597667638483965 [2024-11-16 19:10:35,445 INFO L175 Difference]: Start difference. First operand has 63 places, 54 transitions, 236 flow. Second operand 7 states and 192 transitions. [2024-11-16 19:10:35,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 126 transitions, 636 flow [2024-11-16 19:10:35,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 126 transitions, 590 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-16 19:10:35,681 INFO L231 Difference]: Finished difference. Result has 66 places, 54 transitions, 246 flow [2024-11-16 19:10:35,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=246, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2024-11-16 19:10:35,684 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2024-11-16 19:10:35,685 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 246 flow [2024-11-16 19:10:35,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 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) [2024-11-16 19:10:35,686 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:35,686 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:35,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:10:35,686 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:35,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:35,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1680408482, now seen corresponding path program 1 times [2024-11-16 19:10:35,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:35,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981467100] [2024-11-16 19:10:35,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:35,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:36,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:36,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981467100] [2024-11-16 19:10:36,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981467100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:36,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:36,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 19:10:36,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492378803] [2024-11-16 19:10:36,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:36,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:10:36,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:36,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:10:36,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:10:36,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:36,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 246 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-11-16 19:10:36,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:36,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:36,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:38,185 INFO L124 PetriNetUnfolderBase]: 15379/21073 cut-off events. [2024-11-16 19:10:38,186 INFO L125 PetriNetUnfolderBase]: For 16474/16474 co-relation queries the response was YES. [2024-11-16 19:10:38,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54167 conditions, 21073 events. 15379/21073 cut-off events. For 16474/16474 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 115411 event pairs, 757 based on Foata normal form. 16/21083 useless extension candidates. Maximal degree in co-relation 54151. Up to 11220 conditions per place. [2024-11-16 19:10:38,324 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 79 selfloop transitions, 5 changer transitions 59/149 dead transitions. [2024-11-16 19:10:38,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 149 transitions, 914 flow [2024-11-16 19:10:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:10:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:10:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 194 transitions. [2024-11-16 19:10:38,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49489795918367346 [2024-11-16 19:10:38,327 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 246 flow. Second operand 8 states and 194 transitions. [2024-11-16 19:10:38,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 149 transitions, 914 flow [2024-11-16 19:10:38,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 149 transitions, 689 flow, removed 34 selfloop flow, removed 10 redundant places. [2024-11-16 19:10:38,556 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 193 flow [2024-11-16 19:10:38,556 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=193, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2024-11-16 19:10:38,557 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 12 predicate places. [2024-11-16 19:10:38,557 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 193 flow [2024-11-16 19:10:38,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-11-16 19:10:38,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:38,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:38,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:10:38,558 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:38,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1673956006, now seen corresponding path program 2 times [2024-11-16 19:10:38,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:38,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911982877] [2024-11-16 19:10:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:38,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:39,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:39,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:39,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911982877] [2024-11-16 19:10:39,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911982877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:39,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:39,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 19:10:39,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608771860] [2024-11-16 19:10:39,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:39,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 19:10:39,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:39,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 19:10:39,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 19:10:39,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:39,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 193 flow. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 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) [2024-11-16 19:10:39,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:39,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:39,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:41,897 INFO L124 PetriNetUnfolderBase]: 13135/18254 cut-off events. [2024-11-16 19:10:41,897 INFO L125 PetriNetUnfolderBase]: For 9379/9379 co-relation queries the response was YES. [2024-11-16 19:10:41,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46051 conditions, 18254 events. 13135/18254 cut-off events. For 9379/9379 co-relation queries the response was YES. Maximal size of possible extension queue 635. Compared 99750 event pairs, 1749 based on Foata normal form. 16/18268 useless extension candidates. Maximal degree in co-relation 46034. Up to 9628 conditions per place. [2024-11-16 19:10:41,991 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 88 selfloop transitions, 9 changer transitions 129/232 dead transitions. [2024-11-16 19:10:41,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 232 transitions, 1217 flow [2024-11-16 19:10:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 19:10:41,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-16 19:10:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 306 transitions. [2024-11-16 19:10:41,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4803767660910518 [2024-11-16 19:10:41,994 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 193 flow. Second operand 13 states and 306 transitions. [2024-11-16 19:10:41,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 232 transitions, 1217 flow [2024-11-16 19:10:41,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 232 transitions, 1207 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-16 19:10:42,000 INFO L231 Difference]: Finished difference. Result has 82 places, 60 transitions, 242 flow [2024-11-16 19:10:42,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=242, PETRI_PLACES=82, PETRI_TRANSITIONS=60} [2024-11-16 19:10:42,001 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 25 predicate places. [2024-11-16 19:10:42,001 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 60 transitions, 242 flow [2024-11-16 19:10:42,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 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) [2024-11-16 19:10:42,001 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:42,001 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:42,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:10:42,002 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:42,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:42,002 INFO L85 PathProgramCache]: Analyzing trace with hash 859293876, now seen corresponding path program 3 times [2024-11-16 19:10:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:42,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156449778] [2024-11-16 19:10:42,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:42,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:42,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:42,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156449778] [2024-11-16 19:10:42,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156449778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:42,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:42,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 19:10:42,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074710975] [2024-11-16 19:10:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:42,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:10:42,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:10:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:10:42,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:42,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 60 transitions, 242 flow. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-11-16 19:10:42,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:42,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:42,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:44,033 INFO L124 PetriNetUnfolderBase]: 12117/17096 cut-off events. [2024-11-16 19:10:44,033 INFO L125 PetriNetUnfolderBase]: For 16594/16594 co-relation queries the response was YES. [2024-11-16 19:10:44,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46718 conditions, 17096 events. 12117/17096 cut-off events. For 16594/16594 co-relation queries the response was YES. Maximal size of possible extension queue 614. Compared 94414 event pairs, 1866 based on Foata normal form. 16/17110 useless extension candidates. Maximal degree in co-relation 46694. Up to 8256 conditions per place. [2024-11-16 19:10:44,138 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 59 selfloop transitions, 3 changer transitions 68/136 dead transitions. [2024-11-16 19:10:44,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 136 transitions, 790 flow [2024-11-16 19:10:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:10:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:10:44,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2024-11-16 19:10:44,139 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4413265306122449 [2024-11-16 19:10:44,139 INFO L175 Difference]: Start difference. First operand has 82 places, 60 transitions, 242 flow. Second operand 8 states and 173 transitions. [2024-11-16 19:10:44,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 136 transitions, 790 flow [2024-11-16 19:10:44,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 136 transitions, 756 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-16 19:10:44,180 INFO L231 Difference]: Finished difference. Result has 81 places, 54 transitions, 199 flow [2024-11-16 19:10:44,180 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=199, PETRI_PLACES=81, PETRI_TRANSITIONS=54} [2024-11-16 19:10:44,183 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 24 predicate places. [2024-11-16 19:10:44,185 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 54 transitions, 199 flow [2024-11-16 19:10:44,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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) [2024-11-16 19:10:44,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:44,186 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:44,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:10:44,186 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:44,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:44,187 INFO L85 PathProgramCache]: Analyzing trace with hash 582485582, now seen corresponding path program 4 times [2024-11-16 19:10:44,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:44,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526968650] [2024-11-16 19:10:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:44,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:44,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:10:45,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:10:45,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:10:45,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526968650] [2024-11-16 19:10:45,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526968650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:10:45,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:10:45,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 19:10:45,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935150682] [2024-11-16 19:10:45,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:10:45,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 19:10:45,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:10:45,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 19:10:45,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-16 19:10:45,947 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:10:45,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 54 transitions, 199 flow. Second operand has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 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) [2024-11-16 19:10:45,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:10:45,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:10:45,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:10:47,425 INFO L124 PetriNetUnfolderBase]: 11150/16038 cut-off events. [2024-11-16 19:10:47,425 INFO L125 PetriNetUnfolderBase]: For 10933/10933 co-relation queries the response was YES. [2024-11-16 19:10:47,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41915 conditions, 16038 events. 11150/16038 cut-off events. For 10933/10933 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 92185 event pairs, 4932 based on Foata normal form. 16/16045 useless extension candidates. Maximal degree in co-relation 41891. Up to 9803 conditions per place. [2024-11-16 19:10:47,508 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 64 selfloop transitions, 5 changer transitions 26/101 dead transitions. [2024-11-16 19:10:47,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 101 transitions, 544 flow [2024-11-16 19:10:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:10:47,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:10:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2024-11-16 19:10:47,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4489795918367347 [2024-11-16 19:10:47,510 INFO L175 Difference]: Start difference. First operand has 81 places, 54 transitions, 199 flow. Second operand 6 states and 132 transitions. [2024-11-16 19:10:47,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 101 transitions, 544 flow [2024-11-16 19:10:47,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 101 transitions, 524 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-11-16 19:10:47,523 INFO L231 Difference]: Finished difference. Result has 75 places, 57 transitions, 215 flow [2024-11-16 19:10:47,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=75, PETRI_TRANSITIONS=57} [2024-11-16 19:10:47,524 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 18 predicate places. [2024-11-16 19:10:47,524 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 57 transitions, 215 flow [2024-11-16 19:10:47,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.555555555555555) internal successors, (122), 9 states have internal predecessors, (122), 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) [2024-11-16 19:10:47,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:10:47,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:10:47,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 19:10:47,525 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:10:47,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:10:47,525 INFO L85 PathProgramCache]: Analyzing trace with hash -387973728, now seen corresponding path program 5 times [2024-11-16 19:10:47,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:10:47,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282202143] [2024-11-16 19:10:47,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:10:47,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:10:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat