./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.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_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/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_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/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_65f387f0-b410-4c06-9566-f4ddfcec7286/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 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:24:45,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:24:45,664 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 16:24:45,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:24:45,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:24:45,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:24:45,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:24:45,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:24:45,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:24:45,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:24:45,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:24:45,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:24:45,717 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:24:45,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:24:45,717 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:24:45,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:24:45,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:24:45,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:24:45,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:24:45,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:24:45,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:24:45,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:24:45,719 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 16:24:45,719 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:24:45,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:24:45,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:24:45,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:24:45,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:24:45,721 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:24:45,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:24:45,721 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:24:45,721 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:24:45,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:24:45,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:24:45,721 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_65f387f0-b410-4c06-9566-f4ddfcec7286/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 -> 23c4aefdda14d4315577cd0030d174ab477745d4b270d2de822290a016a0ff8d [2024-11-13 16:24:46,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:24:46,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:24:46,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:24:46,138 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:24:46,139 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:24:46,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i Unable to find full path for "g++" [2024-11-13 16:24:48,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:24:49,048 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:24:49,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/sv-benchmarks/c/goblint-regression/28-race_reach_83-list2_racing1.i [2024-11-13 16:24:49,071 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/data/57a7bd95f/9f37caf6511042df807137afee341fd7/FLAGe904f67e3 [2024-11-13 16:24:49,090 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/data/57a7bd95f/9f37caf6511042df807137afee341fd7 [2024-11-13 16:24:49,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:24:49,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:24:49,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:24:49,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:24:49,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:24:49,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:49" (1/1) ... [2024-11-13 16:24:49,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df8bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:49, skipping insertion in model container [2024-11-13 16:24:49,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:49" (1/1) ... [2024-11-13 16:24:49,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:24:49,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:24:49,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:24:50,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:24:50,186 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:24:50,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50 WrapperNode [2024-11-13 16:24:50,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:24:50,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:24:50,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:24:50,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:24:50,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,294 INFO L138 Inliner]: procedures = 281, calls = 109, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 565 [2024-11-13 16:24:50,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:24:50,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:24:50,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:24:50,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:24:50,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:24:50,415 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:24:50,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:24:50,416 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:24:50,417 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (1/1) ... [2024-11-13 16:24:50,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:24:50,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:24:50,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:24:50,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65f387f0-b410-4c06-9566-f4ddfcec7286/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:24:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:24:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 16:24:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-13 16:24:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-13 16:24:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:24:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 16:24:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:24:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:24:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-13 16:24:50,507 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-13 16:24:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:24:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:24:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:24:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:24:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 16:24:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-13 16:24:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-13 16:24:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:24:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:24:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:24:50,511 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 16:24:50,829 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:24:50,832 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:24:52,211 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:24:52,212 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:24:52,310 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:24:52,311 INFO L316 CfgBuilder]: Removed 28 assume(true) statements. [2024-11-13 16:24:52,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:24:52 BoogieIcfgContainer [2024-11-13 16:24:52,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:24:52,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:24:52,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:24:52,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:24:52,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:24:49" (1/3) ... [2024-11-13 16:24:52,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596e3fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:24:52, skipping insertion in model container [2024-11-13 16:24:52,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:50" (2/3) ... [2024-11-13 16:24:52,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@596e3fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:24:52, skipping insertion in model container [2024-11-13 16:24:52,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:24:52" (3/3) ... [2024-11-13 16:24:52,333 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_83-list2_racing1.i [2024-11-13 16:24:52,353 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:24:52,355 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_83-list2_racing1.i that has 4 procedures, 572 locations, 1 initial locations, 18 loop locations, and 37 error locations. [2024-11-13 16:24:52,355 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:24:52,689 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-13 16:24:52,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 581 places, 622 transitions, 1283 flow [2024-11-13 16:24:54,019 INFO L124 PetriNetUnfolderBase]: 171/1799 cut-off events. [2024-11-13 16:24:54,023 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-13 16:24:54,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1799 events. 171/1799 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 12508 event pairs, 0 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 924. Up to 16 conditions per place. [2024-11-13 16:24:54,098 INFO L82 GeneralOperation]: Start removeDead. Operand has 581 places, 622 transitions, 1283 flow [2024-11-13 16:24:54,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 581 places, 622 transitions, 1283 flow [2024-11-13 16:24:54,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:24:54,175 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;@7613e6f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:24:54,175 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-13 16:24:54,190 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:24:54,191 INFO L124 PetriNetUnfolderBase]: 0/54 cut-off events. [2024-11-13 16:24:54,192 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:24:54,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:24:54,193 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, 1, 1] [2024-11-13 16:24:54,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-13 16:24:54,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:24:54,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2078866966, now seen corresponding path program 1 times [2024-11-13 16:24:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:24:54,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250696705] [2024-11-13 16:24:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:24:54,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:24:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:24:54,630 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 16:24:54,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:24:54,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250696705] [2024-11-13 16:24:54,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250696705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:24:54,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:24:54,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:24:54,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110050791] [2024-11-13 16:24:54,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:24:54,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:24:54,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:24:54,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:24:54,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:24:54,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 622 [2024-11-13 16:24:54,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 622 transitions, 1283 flow. Second operand has 3 states, 3 states have (on average 544.3333333333334) internal successors, (1633), 3 states have internal predecessors, (1633), 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 16:24:54,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:24:54,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 622 [2024-11-13 16:24:54,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:25:07,499 INFO L124 PetriNetUnfolderBase]: 5415/36175 cut-off events. [2024-11-13 16:25:07,499 INFO L125 PetriNetUnfolderBase]: For 2915/2915 co-relation queries the response was YES. [2024-11-13 16:25:07,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44419 conditions, 36175 events. 5415/36175 cut-off events. For 2915/2915 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 504670 event pairs, 4448 based on Foata normal form. 6985/39875 useless extension candidates. Maximal degree in co-relation 29569. Up to 7148 conditions per place. [2024-11-13 16:25:08,234 INFO L140 encePairwiseOnDemand]: 587/622 looper letters, 42 selfloop transitions, 2 changer transitions 0/585 dead transitions. [2024-11-13 16:25:08,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 585 transitions, 1297 flow [2024-11-13 16:25:08,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:25:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:25:08,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1706 transitions. [2024-11-13 16:25:08,271 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9142550911039657 [2024-11-13 16:25:08,273 INFO L175 Difference]: Start difference. First operand has 581 places, 622 transitions, 1283 flow. Second operand 3 states and 1706 transitions. [2024-11-13 16:25:08,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 585 transitions, 1297 flow [2024-11-13 16:25:08,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 585 transitions, 1297 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:25:08,323 INFO L231 Difference]: Finished difference. Result has 578 places, 585 transitions, 1213 flow [2024-11-13 16:25:08,330 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1209, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1213, PETRI_PLACES=578, PETRI_TRANSITIONS=585} [2024-11-13 16:25:08,335 INFO L277 CegarLoopForPetriNet]: 581 programPoint places, -3 predicate places. [2024-11-13 16:25:08,335 INFO L471 AbstractCegarLoop]: Abstraction has has 578 places, 585 transitions, 1213 flow [2024-11-13 16:25:08,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 544.3333333333334) internal successors, (1633), 3 states have internal predecessors, (1633), 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 16:25:08,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:25:08,338 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:25:08,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:25:08,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-13 16:25:08,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1176831342, now seen corresponding path program 1 times [2024-11-13 16:25:08,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:08,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37414590] [2024-11-13 16:25:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:08,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:08,540 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 16:25:08,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:08,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37414590] [2024-11-13 16:25:08,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37414590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:08,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:08,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:25:08,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920404435] [2024-11-13 16:25:08,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:08,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:25:08,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:08,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:25:08,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:25:08,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 541 out of 622 [2024-11-13 16:25:08,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 585 transitions, 1213 flow. Second operand has 3 states, 3 states have (on average 542.0) internal successors, (1626), 3 states have internal predecessors, (1626), 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 16:25:08,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:25:08,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 541 of 622 [2024-11-13 16:25:08,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:25:18,986 INFO L124 PetriNetUnfolderBase]: 4320/35973 cut-off events. [2024-11-13 16:25:18,987 INFO L125 PetriNetUnfolderBase]: For 3935/3935 co-relation queries the response was YES. [2024-11-13 16:25:19,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43311 conditions, 35973 events. 4320/35973 cut-off events. For 3935/3935 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 492205 event pairs, 3408 based on Foata normal form. 0/32679 useless extension candidates. Maximal degree in co-relation 43245. Up to 5866 conditions per place. [2024-11-13 16:25:19,453 INFO L140 encePairwiseOnDemand]: 617/622 looper letters, 42 selfloop transitions, 1 changer transitions 0/581 dead transitions. [2024-11-13 16:25:19,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 581 transitions, 1291 flow [2024-11-13 16:25:19,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:25:19,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:25:19,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1670 transitions. [2024-11-13 16:25:19,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.894962486602358 [2024-11-13 16:25:19,460 INFO L175 Difference]: Start difference. First operand has 578 places, 585 transitions, 1213 flow. Second operand 3 states and 1670 transitions. [2024-11-13 16:25:19,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 581 transitions, 1291 flow [2024-11-13 16:25:19,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 581 transitions, 1287 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:25:19,533 INFO L231 Difference]: Finished difference. Result has 574 places, 581 transitions, 1203 flow [2024-11-13 16:25:19,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=622, PETRI_DIFFERENCE_MINUEND_FLOW=1201, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1203, PETRI_PLACES=574, PETRI_TRANSITIONS=581} [2024-11-13 16:25:19,536 INFO L277 CegarLoopForPetriNet]: 581 programPoint places, -7 predicate places. [2024-11-13 16:25:19,536 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 581 transitions, 1203 flow [2024-11-13 16:25:19,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 542.0) internal successors, (1626), 3 states have internal predecessors, (1626), 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 16:25:19,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:25:19,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:25:19,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:25:19,538 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-13 16:25:19,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:25:19,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1074226811, now seen corresponding path program 1 times [2024-11-13 16:25:19,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:25:19,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069508590] [2024-11-13 16:25:19,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:25:19,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:25:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:25:20,722 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 16:25:20,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:25:20,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069508590] [2024-11-13 16:25:20,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069508590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:25:20,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:25:20,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:25:20,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927113599] [2024-11-13 16:25:20,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:25:20,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:25:20,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:25:20,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:25:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:25:21,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 622 [2024-11-13 16:25:21,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 581 transitions, 1203 flow. Second operand has 6 states, 6 states have (on average 433.3333333333333) internal successors, (2600), 6 states have internal predecessors, (2600), 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 16:25:21,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:25:21,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 622 [2024-11-13 16:25:21,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand