./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC --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 ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:40:42,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:40:42,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 00:40:42,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:40:42,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:40:42,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:40:42,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:40:42,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:40:42,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:40:42,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:40:42,934 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:40:42,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:40:42,934 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:40:42,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:40:42,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:40:42,936 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:40:42,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:40:42,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:40:42,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:40:42,937 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:40:42,937 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:40:42,938 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:40:42,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:40:42,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:40:42,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:40:42,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:40:42,939 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:40:42,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:40:42,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:40:42,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:40:42,940 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:40:42,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:40:42,940 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:40:42,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:40:42,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:40:42,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:40:42,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:40:42,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:40:42,941 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_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC 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 -> ce37da4bed964b4727d03a98278bc58de76d7006f2d65a8a42fb0f55b5b34a9c [2024-11-24 00:40:43,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:40:43,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:40:43,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:40:43,270 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:40:43,271 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:40:43,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-11-24 00:40:46,165 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/data/13bd7dc28/0b6e092e76574cf091762121efca70ef/FLAG230719604 [2024-11-24 00:40:46,566 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:40:46,566 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2024-11-24 00:40:46,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/data/13bd7dc28/0b6e092e76574cf091762121efca70ef/FLAG230719604 [2024-11-24 00:40:46,719 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/data/13bd7dc28/0b6e092e76574cf091762121efca70ef [2024-11-24 00:40:46,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:40:46,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:40:46,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:40:46,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:40:46,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:40:46,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:40:46" (1/1) ... [2024-11-24 00:40:46,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6780499d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:46, skipping insertion in model container [2024-11-24 00:40:46,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:40:46" (1/1) ... [2024-11-24 00:40:46,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:40:47,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:40:47,279 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:40:47,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:40:47,445 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:40:47,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47 WrapperNode [2024-11-24 00:40:47,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:40:47,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:40:47,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:40:47,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:40:47,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,510 INFO L138 Inliner]: procedures = 252, calls = 53, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 209 [2024-11-24 00:40:47,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:40:47,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:40:47,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:40:47,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:40:47,524 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,524 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,547 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:40:47,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:40:47,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:40:47,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:40:47,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (1/1) ... [2024-11-24 00:40:47,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:40:47,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:40:47,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:40:47,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7cfb6fa-7891-46c8-b1e5-8aa61863dd48/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:40:47,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 00:40:47,638 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 00:40:47,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:40:47,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:40:47,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:40:47,641 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:40:47,822 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:40:47,823 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:40:48,232 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:40:48,232 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:40:48,288 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:40:48,289 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-24 00:40:48,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:40:48 BoogieIcfgContainer [2024-11-24 00:40:48,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:40:48,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:40:48,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:40:48,296 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:40:48,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:40:46" (1/3) ... [2024-11-24 00:40:48,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7f6733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:40:48, skipping insertion in model container [2024-11-24 00:40:48,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:40:47" (2/3) ... [2024-11-24 00:40:48,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d7f6733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:40:48, skipping insertion in model container [2024-11-24 00:40:48,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:40:48" (3/3) ... [2024-11-24 00:40:48,299 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2024-11-24 00:40:48,314 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:40:48,316 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_27-funptr_racing.i that has 2 procedures, 195 locations, 1 initial locations, 9 loop locations, and 13 error locations. [2024-11-24 00:40:48,316 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:40:48,399 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:40:48,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 215 transitions, 437 flow [2024-11-24 00:40:48,621 INFO L124 PetriNetUnfolderBase]: 26/284 cut-off events. [2024-11-24 00:40:48,627 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:40:48,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 284 events. 26/284 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1003 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 176. Up to 4 conditions per place. [2024-11-24 00:40:48,642 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 215 transitions, 437 flow [2024-11-24 00:40:48,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 215 transitions, 437 flow [2024-11-24 00:40:48,668 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:40:48,679 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;@7f9221fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:40:48,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-24 00:40:48,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:40:48,696 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-24 00:40:48,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:40:48,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:40:48,697 INFO L206 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] [2024-11-24 00:40:48,697 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:40:48,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:40:48,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1012464323, now seen corresponding path program 1 times [2024-11-24 00:40:48,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:40:48,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066950245] [2024-11-24 00:40:48,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:40:48,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:40:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:40:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:40:49,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:40:49,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066950245] [2024-11-24 00:40:49,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066950245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:40:49,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:40:49,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:40:49,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800555179] [2024-11-24 00:40:49,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:40:49,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:40:49,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:40:49,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:40:49,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:40:49,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 215 [2024-11-24 00:40:49,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 215 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-24 00:40:49,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:40:49,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 215 [2024-11-24 00:40:49,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:40:49,510 INFO L124 PetriNetUnfolderBase]: 123/1110 cut-off events. [2024-11-24 00:40:49,510 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-24 00:40:49,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1110 events. 123/1110 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 7374 event pairs, 108 based on Foata normal form. 131/1116 useless extension candidates. Maximal degree in co-relation 1306. Up to 254 conditions per place. [2024-11-24 00:40:49,524 INFO L140 encePairwiseOnDemand]: 194/215 looper letters, 36 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-11-24 00:40:49,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 207 transitions, 497 flow [2024-11-24 00:40:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:40:49,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:40:49,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2024-11-24 00:40:49,543 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8992248062015504 [2024-11-24 00:40:49,547 INFO L175 Difference]: Start difference. First operand has 198 places, 215 transitions, 437 flow. Second operand 3 states and 580 transitions. [2024-11-24 00:40:49,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 207 transitions, 497 flow [2024-11-24 00:40:49,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 207 transitions, 497 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:40:49,561 INFO L231 Difference]: Finished difference. Result has 199 places, 195 transitions, 405 flow [2024-11-24 00:40:49,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=199, PETRI_TRANSITIONS=195} [2024-11-24 00:40:49,570 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, 1 predicate places. [2024-11-24 00:40:49,570 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 195 transitions, 405 flow [2024-11-24 00:40:49,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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) [2024-11-24 00:40:49,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:40:49,573 INFO L206 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] [2024-11-24 00:40:49,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:40:49,574 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:40:49,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:40:49,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1553661643, now seen corresponding path program 1 times [2024-11-24 00:40:49,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:40:49,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687567330] [2024-11-24 00:40:49,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:40:49,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:40:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:40:50,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:40:50,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:40:50,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687567330] [2024-11-24 00:40:50,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687567330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:40:50,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:40:50,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:40:50,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674052360] [2024-11-24 00:40:50,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:40:50,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:40:50,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:40:50,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:40:50,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:40:50,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 215 [2024-11-24 00:40:50,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 195 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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) [2024-11-24 00:40:50,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:40:50,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 215 [2024-11-24 00:40:50,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:40:51,225 INFO L124 PetriNetUnfolderBase]: 246/1513 cut-off events. [2024-11-24 00:40:51,226 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-24 00:40:51,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1513 events. 246/1513 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 11550 event pairs, 179 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 1986. Up to 387 conditions per place. [2024-11-24 00:40:51,237 INFO L140 encePairwiseOnDemand]: 209/215 looper letters, 80 selfloop transitions, 5 changer transitions 0/242 dead transitions. [2024-11-24 00:40:51,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 242 transitions, 669 flow [2024-11-24 00:40:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:40:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:40:51,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1034 transitions. [2024-11-24 00:40:51,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8015503875968992 [2024-11-24 00:40:51,246 INFO L175 Difference]: Start difference. First operand has 199 places, 195 transitions, 405 flow. Second operand 6 states and 1034 transitions. [2024-11-24 00:40:51,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 242 transitions, 669 flow [2024-11-24 00:40:51,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 242 transitions, 665 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:40:51,254 INFO L231 Difference]: Finished difference. Result has 201 places, 194 transitions, 409 flow [2024-11-24 00:40:51,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=409, PETRI_PLACES=201, PETRI_TRANSITIONS=194} [2024-11-24 00:40:51,258 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, 3 predicate places. [2024-11-24 00:40:51,259 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 194 transitions, 409 flow [2024-11-24 00:40:51,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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) [2024-11-24 00:40:51,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:40:51,260 INFO L206 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] [2024-11-24 00:40:51,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:40:51,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:40:51,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:40:51,261 INFO L85 PathProgramCache]: Analyzing trace with hash -600438542, now seen corresponding path program 1 times [2024-11-24 00:40:51,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:40:51,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155953690] [2024-11-24 00:40:51,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:40:51,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:40:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:40:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:40:51,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:40:51,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155953690] [2024-11-24 00:40:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155953690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:40:51,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:40:51,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:40:51,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922852053] [2024-11-24 00:40:51,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:40:51,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:40:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:40:51,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:40:51,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:40:51,354 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 215 [2024-11-24 00:40:51,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 194 transitions, 409 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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) [2024-11-24 00:40:51,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:40:51,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 215 [2024-11-24 00:40:51,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:40:51,746 INFO L124 PetriNetUnfolderBase]: 170/1602 cut-off events. [2024-11-24 00:40:51,746 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-24 00:40:51,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1602 events. 170/1602 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 12529 event pairs, 12 based on Foata normal form. 0/1433 useless extension candidates. Maximal degree in co-relation 1920. Up to 189 conditions per place. [2024-11-24 00:40:51,753 INFO L140 encePairwiseOnDemand]: 211/215 looper letters, 41 selfloop transitions, 3 changer transitions 0/214 dead transitions. [2024-11-24 00:40:51,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 214 transitions, 540 flow [2024-11-24 00:40:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:40:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:40:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 561 transitions. [2024-11-24 00:40:51,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8697674418604651 [2024-11-24 00:40:51,756 INFO L175 Difference]: Start difference. First operand has 201 places, 194 transitions, 409 flow. Second operand 3 states and 561 transitions. [2024-11-24 00:40:51,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 214 transitions, 540 flow [2024-11-24 00:40:51,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 214 transitions, 530 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:40:51,762 INFO L231 Difference]: Finished difference. Result has 200 places, 196 transitions, 421 flow [2024-11-24 00:40:51,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=421, PETRI_PLACES=200, PETRI_TRANSITIONS=196} [2024-11-24 00:40:51,763 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, 2 predicate places. [2024-11-24 00:40:51,763 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 196 transitions, 421 flow [2024-11-24 00:40:51,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 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) [2024-11-24 00:40:51,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:40:51,764 INFO L206 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] [2024-11-24 00:40:51,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:40:51,765 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:40:51,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:40:51,766 INFO L85 PathProgramCache]: Analyzing trace with hash -813534782, now seen corresponding path program 1 times [2024-11-24 00:40:51,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:40:51,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472202854] [2024-11-24 00:40:51,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:40:51,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:40:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:40:51,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:40:51,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:40:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472202854] [2024-11-24 00:40:51,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472202854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:40:51,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:40:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:40:51,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175301044] [2024-11-24 00:40:51,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:40:51,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:40:51,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:40:51,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:40:51,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:40:51,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 215 [2024-11-24 00:40:51,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 196 transitions, 421 flow. Second operand has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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) [2024-11-24 00:40:51,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:40:51,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 215 [2024-11-24 00:40:51,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:40:52,124 INFO L124 PetriNetUnfolderBase]: 39/382 cut-off events. [2024-11-24 00:40:52,124 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-24 00:40:52,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 382 events. 39/382 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1423 event pairs, 0 based on Foata normal form. 13/368 useless extension candidates. Maximal degree in co-relation 442. Up to 25 conditions per place. [2024-11-24 00:40:52,126 INFO L140 encePairwiseOnDemand]: 210/215 looper letters, 50 selfloop transitions, 4 changer transitions 0/175 dead transitions. [2024-11-24 00:40:52,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 175 transitions, 470 flow [2024-11-24 00:40:52,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:40:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:40:52,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1063 transitions. [2024-11-24 00:40:52,130 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8240310077519379 [2024-11-24 00:40:52,130 INFO L175 Difference]: Start difference. First operand has 200 places, 196 transitions, 421 flow. Second operand 6 states and 1063 transitions. [2024-11-24 00:40:52,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 175 transitions, 470 flow [2024-11-24 00:40:52,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 175 transitions, 463 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-24 00:40:52,134 INFO L231 Difference]: Finished difference. Result has 147 places, 139 transitions, 291 flow [2024-11-24 00:40:52,134 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=215, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=147, PETRI_TRANSITIONS=139} [2024-11-24 00:40:52,135 INFO L279 CegarLoopForPetriNet]: 198 programPoint places, -51 predicate places. [2024-11-24 00:40:52,135 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 139 transitions, 291 flow [2024-11-24 00:40:52,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 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) [2024-11-24 00:40:52,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:40:52,137 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:40:52,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:40:52,137 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-24 00:40:52,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:40:52,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1659661809, now seen corresponding path program 1 times [2024-11-24 00:40:52,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:40:52,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296734899] [2024-11-24 00:40:52,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:40:52,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:40:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:40:52,163 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:40:52,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:40:52,203 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:40:52,203 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:40:52,204 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-24 00:40:52,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-24 00:40:52,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-24 00:40:52,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-24 00:40:52,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-24 00:40:52,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-24 00:40:52,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:40:52,209 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-24 00:40:52,211 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:40:52,211 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 00:40:52,260 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-24 00:40:52,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 321 transitions, 658 flow [2024-11-24 00:40:52,343 INFO L124 PetriNetUnfolderBase]: 48/487 cut-off events. [2024-11-24 00:40:52,343 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 00:40:52,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 487 events. 48/487 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2075 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 302. Up to 8 conditions per place. [2024-11-24 00:40:52,347 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 321 transitions, 658 flow [2024-11-24 00:40:52,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 321 transitions, 658 flow [2024-11-24 00:40:52,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:40:52,358 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;@7f9221fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:40:52,358 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2024-11-24 00:40:52,365 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:40:52,365 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2024-11-24 00:40:52,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:40:52,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:40:52,366 INFO L206 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] [2024-11-24 00:40:52,366 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:40:52,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:40:52,366 INFO L85 PathProgramCache]: Analyzing trace with hash -666429052, now seen corresponding path program 1 times [2024-11-24 00:40:52,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:40:52,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036005343] [2024-11-24 00:40:52,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:40:52,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:40:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:40:52,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:40:52,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:40:52,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036005343] [2024-11-24 00:40:52,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036005343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:40:52,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:40:52,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:40:52,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040043162] [2024-11-24 00:40:52,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:40:52,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:40:52,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:40:52,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:40:52,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:40:52,457 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 321 [2024-11-24 00:40:52,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 321 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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) [2024-11-24 00:40:52,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:40:52,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 321 [2024-11-24 00:40:52,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:40:55,408 INFO L124 PetriNetUnfolderBase]: 3460/16760 cut-off events. [2024-11-24 00:40:55,409 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2024-11-24 00:40:55,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22311 conditions, 16760 events. 3460/16760 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 438. Compared 208920 event pairs, 1584 based on Foata normal form. 3090/18209 useless extension candidates. Maximal degree in co-relation 1883. Up to 5465 conditions per place. [2024-11-24 00:40:55,534 INFO L140 encePairwiseOnDemand]: 288/321 looper letters, 51 selfloop transitions, 2 changer transitions 0/302 dead transitions. [2024-11-24 00:40:55,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 302 transitions, 726 flow [2024-11-24 00:40:55,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:40:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:40:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 847 transitions. [2024-11-24 00:40:55,537 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8795430944963655 [2024-11-24 00:40:55,537 INFO L175 Difference]: Start difference. First operand has 292 places, 321 transitions, 658 flow. Second operand 3 states and 847 transitions. [2024-11-24 00:40:55,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 302 transitions, 726 flow [2024-11-24 00:40:55,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 302 transitions, 726 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:40:55,544 INFO L231 Difference]: Finished difference. Result has 293 places, 290 transitions, 606 flow [2024-11-24 00:40:55,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=293, PETRI_TRANSITIONS=290} [2024-11-24 00:40:55,545 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 1 predicate places. [2024-11-24 00:40:55,546 INFO L471 AbstractCegarLoop]: Abstraction has has 293 places, 290 transitions, 606 flow [2024-11-24 00:40:55,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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) [2024-11-24 00:40:55,546 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:40:55,547 INFO L206 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] [2024-11-24 00:40:55,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:40:55,547 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:40:55,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:40:55,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1250125460, now seen corresponding path program 1 times [2024-11-24 00:40:55,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:40:55,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741699703] [2024-11-24 00:40:55,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:40:55,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:40:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:40:55,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:40:55,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:40:55,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741699703] [2024-11-24 00:40:55,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741699703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:40:55,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:40:55,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:40:55,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943270765] [2024-11-24 00:40:55,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:40:55,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:40:55,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:40:55,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:40:55,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:40:56,058 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 321 [2024-11-24 00:40:56,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 290 transitions, 606 flow. Second operand has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 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) [2024-11-24 00:40:56,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:40:56,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 321 [2024-11-24 00:40:56,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:00,567 INFO L124 PetriNetUnfolderBase]: 6951/28147 cut-off events. [2024-11-24 00:41:00,568 INFO L125 PetriNetUnfolderBase]: For 345/384 co-relation queries the response was YES. [2024-11-24 00:41:00,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39106 conditions, 28147 events. 6951/28147 cut-off events. For 345/384 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 368995 event pairs, 3215 based on Foata normal form. 0/25277 useless extension candidates. Maximal degree in co-relation 38888. Up to 7803 conditions per place. [2024-11-24 00:41:00,753 INFO L140 encePairwiseOnDemand]: 315/321 looper letters, 142 selfloop transitions, 6 changer transitions 0/385 dead transitions. [2024-11-24 00:41:00,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 385 transitions, 1092 flow [2024-11-24 00:41:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:41:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:41:00,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1576 transitions. [2024-11-24 00:41:00,757 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.818276220145379 [2024-11-24 00:41:00,757 INFO L175 Difference]: Start difference. First operand has 293 places, 290 transitions, 606 flow. Second operand 6 states and 1576 transitions. [2024-11-24 00:41:00,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 385 transitions, 1092 flow [2024-11-24 00:41:00,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 385 transitions, 1090 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:41:00,766 INFO L231 Difference]: Finished difference. Result has 296 places, 289 transitions, 614 flow [2024-11-24 00:41:00,767 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=614, PETRI_PLACES=296, PETRI_TRANSITIONS=289} [2024-11-24 00:41:00,768 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 4 predicate places. [2024-11-24 00:41:00,769 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 289 transitions, 614 flow [2024-11-24 00:41:00,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.5) internal successors, (1437), 6 states have internal predecessors, (1437), 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) [2024-11-24 00:41:00,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:00,771 INFO L206 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] [2024-11-24 00:41:00,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:41:00,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:00,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:00,772 INFO L85 PathProgramCache]: Analyzing trace with hash -972118406, now seen corresponding path program 1 times [2024-11-24 00:41:00,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:00,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696983218] [2024-11-24 00:41:00,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:00,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:41:00,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:00,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696983218] [2024-11-24 00:41:00,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696983218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:00,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:00,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:00,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280254754] [2024-11-24 00:41:00,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:00,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:00,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:00,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:00,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 321 [2024-11-24 00:41:00,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 289 transitions, 614 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2024-11-24 00:41:00,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:00,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 321 [2024-11-24 00:41:00,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:04,309 INFO L124 PetriNetUnfolderBase]: 6242/30828 cut-off events. [2024-11-24 00:41:04,309 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-11-24 00:41:04,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40778 conditions, 30828 events. 6242/30828 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 764. Compared 425552 event pairs, 1648 based on Foata normal form. 0/27517 useless extension candidates. Maximal degree in co-relation 38700. Up to 5556 conditions per place. [2024-11-24 00:41:04,461 INFO L140 encePairwiseOnDemand]: 314/321 looper letters, 74 selfloop transitions, 5 changer transitions 0/327 dead transitions. [2024-11-24 00:41:04,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 327 transitions, 859 flow [2024-11-24 00:41:04,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:04,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 828 transitions. [2024-11-24 00:41:04,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8598130841121495 [2024-11-24 00:41:04,464 INFO L175 Difference]: Start difference. First operand has 296 places, 289 transitions, 614 flow. Second operand 3 states and 828 transitions. [2024-11-24 00:41:04,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 327 transitions, 859 flow [2024-11-24 00:41:04,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 327 transitions, 847 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-24 00:41:04,470 INFO L231 Difference]: Finished difference. Result has 295 places, 294 transitions, 646 flow [2024-11-24 00:41:04,471 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=295, PETRI_TRANSITIONS=294} [2024-11-24 00:41:04,471 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 3 predicate places. [2024-11-24 00:41:04,471 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 294 transitions, 646 flow [2024-11-24 00:41:04,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2024-11-24 00:41:04,472 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:04,472 INFO L206 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] [2024-11-24 00:41:04,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:41:04,473 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:04,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:04,473 INFO L85 PathProgramCache]: Analyzing trace with hash 802769467, now seen corresponding path program 1 times [2024-11-24 00:41:04,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714973540] [2024-11-24 00:41:04,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:04,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:41:04,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:04,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714973540] [2024-11-24 00:41:04,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714973540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:04,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:04,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:41:04,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596343634] [2024-11-24 00:41:04,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:04,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:41:04,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:04,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:41:04,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:41:04,624 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 321 [2024-11-24 00:41:04,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 294 transitions, 646 flow. Second operand has 5 states, 5 states have (on average 249.8) internal successors, (1249), 5 states have internal predecessors, (1249), 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) [2024-11-24 00:41:04,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:04,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 321 [2024-11-24 00:41:04,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:08,516 INFO L124 PetriNetUnfolderBase]: 7117/34934 cut-off events. [2024-11-24 00:41:08,516 INFO L125 PetriNetUnfolderBase]: For 709/717 co-relation queries the response was YES. [2024-11-24 00:41:08,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47621 conditions, 34934 events. 7117/34934 cut-off events. For 709/717 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 493256 event pairs, 3717 based on Foata normal form. 13/31004 useless extension candidates. Maximal degree in co-relation 43363. Up to 10396 conditions per place. [2024-11-24 00:41:08,674 INFO L140 encePairwiseOnDemand]: 316/321 looper letters, 100 selfloop transitions, 5 changer transitions 0/356 dead transitions. [2024-11-24 00:41:08,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 356 transitions, 980 flow [2024-11-24 00:41:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:41:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:41:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1594 transitions. [2024-11-24 00:41:08,678 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8276220145379024 [2024-11-24 00:41:08,679 INFO L175 Difference]: Start difference. First operand has 295 places, 294 transitions, 646 flow. Second operand 6 states and 1594 transitions. [2024-11-24 00:41:08,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 356 transitions, 980 flow [2024-11-24 00:41:08,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 356 transitions, 970 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:08,693 INFO L231 Difference]: Finished difference. Result has 301 places, 296 transitions, 662 flow [2024-11-24 00:41:08,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=662, PETRI_PLACES=301, PETRI_TRANSITIONS=296} [2024-11-24 00:41:08,694 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 9 predicate places. [2024-11-24 00:41:08,694 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 296 transitions, 662 flow [2024-11-24 00:41:08,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 249.8) internal successors, (1249), 5 states have internal predecessors, (1249), 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) [2024-11-24 00:41:08,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:08,695 INFO L206 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] [2024-11-24 00:41:08,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:41:08,696 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:08,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:08,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1439640689, now seen corresponding path program 1 times [2024-11-24 00:41:08,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:08,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373047109] [2024-11-24 00:41:08,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:08,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:08,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:41:08,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:08,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373047109] [2024-11-24 00:41:08,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373047109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:08,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:08,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:08,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259406110] [2024-11-24 00:41:08,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:08,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:08,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:08,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:08,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:08,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 321 [2024-11-24 00:41:08,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 296 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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) [2024-11-24 00:41:08,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:08,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 321 [2024-11-24 00:41:08,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:41:23,495 INFO L124 PetriNetUnfolderBase]: 36162/135740 cut-off events. [2024-11-24 00:41:23,495 INFO L125 PetriNetUnfolderBase]: For 851/851 co-relation queries the response was YES. [2024-11-24 00:41:23,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194306 conditions, 135740 events. 36162/135740 cut-off events. For 851/851 co-relation queries the response was YES. Maximal size of possible extension queue 3360. Compared 2169511 event pairs, 14868 based on Foata normal form. 0/121965 useless extension candidates. Maximal degree in co-relation 193990. Up to 31067 conditions per place. [2024-11-24 00:41:24,168 INFO L140 encePairwiseOnDemand]: 286/321 looper letters, 102 selfloop transitions, 26 changer transitions 0/355 dead transitions. [2024-11-24 00:41:24,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 355 transitions, 1047 flow [2024-11-24 00:41:24,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:41:24,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:41:24,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2024-11-24 00:41:24,171 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8307372793354102 [2024-11-24 00:41:24,171 INFO L175 Difference]: Start difference. First operand has 301 places, 296 transitions, 662 flow. Second operand 3 states and 800 transitions. [2024-11-24 00:41:24,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 355 transitions, 1047 flow [2024-11-24 00:41:24,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 355 transitions, 1041 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-24 00:41:24,184 INFO L231 Difference]: Finished difference. Result has 303 places, 322 transitions, 882 flow [2024-11-24 00:41:24,184 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=882, PETRI_PLACES=303, PETRI_TRANSITIONS=322} [2024-11-24 00:41:24,185 INFO L279 CegarLoopForPetriNet]: 292 programPoint places, 11 predicate places. [2024-11-24 00:41:24,185 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 322 transitions, 882 flow [2024-11-24 00:41:24,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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) [2024-11-24 00:41:24,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:41:24,186 INFO L206 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] [2024-11-24 00:41:24,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:41:24,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2024-11-24 00:41:24,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:41:24,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1858201530, now seen corresponding path program 1 times [2024-11-24 00:41:24,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:41:24,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261680813] [2024-11-24 00:41:24,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:41:24,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:41:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:41:24,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:41:24,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:41:24,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261680813] [2024-11-24 00:41:24,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261680813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:41:24,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:41:24,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:41:24,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258404420] [2024-11-24 00:41:24,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:41:24,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:41:24,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:41:24,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:41:24,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:41:24,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 321 [2024-11-24 00:41:24,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 322 transitions, 882 flow. Second operand has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 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) [2024-11-24 00:41:24,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:41:24,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 321 [2024-11-24 00:41:24,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand