./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:58:06,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:58:06,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 12:58:06,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:58:06,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:58:07,032 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:58:07,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:58:07,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:58:07,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:58:07,034 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:58:07,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:58:07,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:58:07,035 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:58:07,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:58:07,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:58:07,035 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:58:07,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:58:07,036 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:58:07,036 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:58:07,036 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:58:07,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:58:07,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:58:07,037 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:58:07,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:58:07,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:58:07,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:58:07,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:58:07,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:58:07,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:58:07,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:58:07,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:58:07,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:58:07,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:58:07,040 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd 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 ! data-race) ) 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 -> 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc [2024-11-13 12:58:07,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:58:07,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:58:07,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:58:07,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:58:07,384 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:58:07,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-divine/barrier_3t.i Unable to find full path for "g++" [2024-11-13 12:58:09,250 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:58:09,612 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:58:09,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/sv-benchmarks/c/pthread-divine/barrier_3t.i [2024-11-13 12:58:09,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/data/f723c22bd/21045b0d0cff4726969e0ee35fe9fcf5/FLAG0baec1a05 [2024-11-13 12:58:09,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/data/f723c22bd/21045b0d0cff4726969e0ee35fe9fcf5 [2024-11-13 12:58:09,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:58:09,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:58:09,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:58:09,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:58:09,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:58:09,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:58:09" (1/1) ... [2024-11-13 12:58:09,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f412c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:09, skipping insertion in model container [2024-11-13 12:58:09,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:58:09" (1/1) ... [2024-11-13 12:58:09,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:58:10,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:58:10,274 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:58:10,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:58:10,419 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:58:10,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10 WrapperNode [2024-11-13 12:58:10,421 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:58:10,422 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:58:10,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:58:10,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:58:10,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,448 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,514 INFO L138 Inliner]: procedures = 174, calls = 99, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1039 [2024-11-13 12:58:10,515 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:58:10,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:58:10,516 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:58:10,516 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:58:10,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:58:10,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:58:10,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:58:10,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:58:10,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (1/1) ... [2024-11-13 12:58:10,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:58:10,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:58:10,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:58:10,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86af7f26-0e4e-4f0a-aa78-6be722b54989/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:58:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 12:58:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 12:58:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 12:58:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-13 12:58:10,759 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 12:58:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:58:10,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:58:10,762 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 12:58:10,986 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:58:10,988 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:58:13,156 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:58:13,157 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:58:13,328 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:58:13,328 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-13 12:58:13,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:58:13 BoogieIcfgContainer [2024-11-13 12:58:13,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:58:13,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:58:13,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:58:13,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:58:13,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:58:09" (1/3) ... [2024-11-13 12:58:13,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a84d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:58:13, skipping insertion in model container [2024-11-13 12:58:13,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:58:10" (2/3) ... [2024-11-13 12:58:13,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a84d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:58:13, skipping insertion in model container [2024-11-13 12:58:13,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:58:13" (3/3) ... [2024-11-13 12:58:13,352 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_3t.i [2024-11-13 12:58:13,368 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:58:13,370 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG barrier_3t.i that has 2 procedures, 1117 locations, 1 initial locations, 20 loop locations, and 99 error locations. [2024-11-13 12:58:13,371 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:58:13,696 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 12:58:13,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1120 places, 1210 transitions, 2427 flow [2024-11-13 12:58:15,090 INFO L124 PetriNetUnfolderBase]: 141/1788 cut-off events. [2024-11-13 12:58:15,093 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 12:58:15,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1788 events. 141/1788 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7045 event pairs, 0 based on Foata normal form. 0/1497 useless extension candidates. Maximal degree in co-relation 1084. Up to 4 conditions per place. [2024-11-13 12:58:15,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 1120 places, 1210 transitions, 2427 flow [2024-11-13 12:58:15,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1120 places, 1210 transitions, 2427 flow [2024-11-13 12:58:15,231 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:58:15,248 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;@30d022cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:58:15,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2024-11-13 12:58:15,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:58:15,263 INFO L124 PetriNetUnfolderBase]: 1/53 cut-off events. [2024-11-13 12:58:15,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:58:15,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:58:15,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:58:15,265 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-13 12:58:15,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:58:15,270 INFO L85 PathProgramCache]: Analyzing trace with hash -576233078, now seen corresponding path program 1 times [2024-11-13 12:58:15,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:58:15,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023463280] [2024-11-13 12:58:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:58:15,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:58:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:58:16,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:58:16,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023463280] [2024-11-13 12:58:16,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023463280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:58:16,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:58:16,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:58:16,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984542158] [2024-11-13 12:58:16,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:58:16,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:58:16,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:58:16,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:58:16,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:58:18,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 862 out of 1210 [2024-11-13 12:58:18,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1120 places, 1210 transitions, 2427 flow. Second operand has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 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) [2024-11-13 12:58:18,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:58:18,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 862 of 1210 [2024-11-13 12:58:18,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:58:40,108 INFO L124 PetriNetUnfolderBase]: 18617/86563 cut-off events. [2024-11-13 12:58:40,109 INFO L125 PetriNetUnfolderBase]: For 7/10 co-relation queries the response was YES. [2024-11-13 12:58:40,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119861 conditions, 86563 events. 18617/86563 cut-off events. For 7/10 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 1059754 event pairs, 16093 based on Foata normal form. 8306/84296 useless extension candidates. Maximal degree in co-relation 119043. Up to 33288 conditions per place. [2024-11-13 12:58:40,477 INFO L140 encePairwiseOnDemand]: 1138/1210 looper letters, 276 selfloop transitions, 5 changer transitions 3/1120 dead transitions. [2024-11-13 12:58:40,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1101 places, 1120 transitions, 2809 flow [2024-11-13 12:58:40,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:58:40,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:58:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5520 transitions. [2024-11-13 12:58:40,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7603305785123967 [2024-11-13 12:58:40,526 INFO L175 Difference]: Start difference. First operand has 1120 places, 1210 transitions, 2427 flow. Second operand 6 states and 5520 transitions. [2024-11-13 12:58:40,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1101 places, 1120 transitions, 2809 flow [2024-11-13 12:58:40,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1101 places, 1120 transitions, 2809 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 12:58:40,572 INFO L231 Difference]: Finished difference. Result has 1101 places, 1117 transitions, 2251 flow [2024-11-13 12:58:40,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1210, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=1096, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2251, PETRI_PLACES=1101, PETRI_TRANSITIONS=1117} [2024-11-13 12:58:40,583 INFO L277 CegarLoopForPetriNet]: 1120 programPoint places, -19 predicate places. [2024-11-13 12:58:40,584 INFO L471 AbstractCegarLoop]: Abstraction has has 1101 places, 1117 transitions, 2251 flow [2024-11-13 12:58:40,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 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) [2024-11-13 12:58:40,588 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:58:40,588 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:58:40,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:58:40,590 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-13 12:58:40,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:58:40,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1801066301, now seen corresponding path program 1 times [2024-11-13 12:58:40,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:58:40,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470945753] [2024-11-13 12:58:40,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:58:40,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:58:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:58:40,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:58:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470945753] [2024-11-13 12:58:40,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470945753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:58:40,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:58:40,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:58:40,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936556712] [2024-11-13 12:58:40,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:58:40,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:58:40,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:58:40,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:58:40,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:58:40,801 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1108 out of 1210 [2024-11-13 12:58:40,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1101 places, 1117 transitions, 2251 flow. Second operand has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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) [2024-11-13 12:58:40,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:58:40,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1108 of 1210 [2024-11-13 12:58:40,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:58:43,828 INFO L124 PetriNetUnfolderBase]: 563/9917 cut-off events. [2024-11-13 12:58:43,829 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 12:58:43,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10542 conditions, 9917 events. 563/9917 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 90822 event pairs, 210 based on Foata normal form. 1/8505 useless extension candidates. Maximal degree in co-relation 10453. Up to 608 conditions per place. [2024-11-13 12:58:44,075 INFO L140 encePairwiseOnDemand]: 1207/1210 looper letters, 35 selfloop transitions, 2 changer transitions 0/1118 dead transitions. [2024-11-13 12:58:44,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1100 places, 1118 transitions, 2327 flow [2024-11-13 12:58:44,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:58:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:58:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3362 transitions. [2024-11-13 12:58:44,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9261707988980716 [2024-11-13 12:58:44,084 INFO L175 Difference]: Start difference. First operand has 1101 places, 1117 transitions, 2251 flow. Second operand 3 states and 3362 transitions. [2024-11-13 12:58:44,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1100 places, 1118 transitions, 2327 flow [2024-11-13 12:58:44,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1095 places, 1118 transitions, 2317 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 12:58:44,106 INFO L231 Difference]: Finished difference. Result has 1096 places, 1118 transitions, 2253 flow [2024-11-13 12:58:44,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1210, PETRI_DIFFERENCE_MINUEND_FLOW=2241, PETRI_DIFFERENCE_MINUEND_PLACES=1093, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2253, PETRI_PLACES=1096, PETRI_TRANSITIONS=1118} [2024-11-13 12:58:44,109 INFO L277 CegarLoopForPetriNet]: 1120 programPoint places, -24 predicate places. [2024-11-13 12:58:44,109 INFO L471 AbstractCegarLoop]: Abstraction has has 1096 places, 1118 transitions, 2253 flow [2024-11-13 12:58:44,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1109.3333333333333) internal successors, (3328), 3 states have internal predecessors, (3328), 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) [2024-11-13 12:58:44,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:58:44,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:58:44,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:58:44,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-13 12:58:44,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:58:44,113 INFO L85 PathProgramCache]: Analyzing trace with hash 186309089, now seen corresponding path program 1 times [2024-11-13 12:58:44,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:58:44,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44977713] [2024-11-13 12:58:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:58:44,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:58:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:58:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:58:44,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:58:44,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44977713] [2024-11-13 12:58:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44977713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:58:44,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:58:44,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:58:44,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553897503] [2024-11-13 12:58:44,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:58:44,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:58:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:58:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:58:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:58:46,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 862 out of 1210 [2024-11-13 12:58:46,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1096 places, 1118 transitions, 2253 flow. Second operand has 6 states, 6 states have (on average 863.5) internal successors, (5181), 6 states have internal predecessors, (5181), 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) [2024-11-13 12:58:46,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:58:46,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 862 of 1210 [2024-11-13 12:58:46,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand