./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu --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 f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:56,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:56,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:36:56,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:56,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:56,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:56,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:56,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:56,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:56,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:56,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:56,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:56,512 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:56,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:56,513 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:56,514 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:36:56,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:56,515 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:36:56,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:56,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:56,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:56,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:56,519 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:36:56,519 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:36:56,520 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:36:56,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:56,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:56,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:56,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:56,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:56,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:56,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:56,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:56,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:56,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:56,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:56,527 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:56,528 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:56,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:56,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:56,530 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:56,531 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7efed4227021db06f22a3abd4d1096de1449b086dcfb78e041156858b4360a4 [2023-11-19 07:36:56,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:56,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:56,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:56,907 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:56,908 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:56,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2023-11-19 07:37:00,861 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:37:01,289 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:37:01,291 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/sv-benchmarks/c/pthread-divine/one_time_barrier_twice_3t.i [2023-11-19 07:37:01,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/data/c646a427f/b49df1207aea484fabe6391031e421d8/FLAGd8f4b5a68 [2023-11-19 07:37:01,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/data/c646a427f/b49df1207aea484fabe6391031e421d8 [2023-11-19 07:37:01,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:37:01,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:37:01,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:01,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:37:01,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:37:01,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:01" (1/1) ... [2023-11-19 07:37:01,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778c01d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:01, skipping insertion in model container [2023-11-19 07:37:01,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:37:01" (1/1) ... [2023-11-19 07:37:01,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:37:01,632 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:37:02,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:02,026 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:37:02,050 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:37:02,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:37:02,200 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:37:02,208 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:37:02,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02 WrapperNode [2023-11-19 07:37:02,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:37:02,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:02,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:37:02,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:37:02,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,334 INFO L138 Inliner]: procedures = 174, calls = 92, calls flagged for inlining = 21, calls inlined = 37, statements flattened = 905 [2023-11-19 07:37:02,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:37:02,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:37:02,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:37:02,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:37:02,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:37:02,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:37:02,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:37:02,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:37:02,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (1/1) ... [2023-11-19 07:37:02,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:37:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:02,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:37:02,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861c6ca-6136-4129-a26a-7a7fe5c95450/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:37:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:37:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:37:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:37:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-19 07:37:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-19 07:37:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:37:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:37:02,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:37:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:37:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:37:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:37:02,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:37:02,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:37:02,689 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:37:02,986 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:37:02,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:37:04,639 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:37:04,674 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:37:04,674 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-19 07:37:04,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:04 BoogieIcfgContainer [2023-11-19 07:37:04,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:37:04,698 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:37:04,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:37:04,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:37:04,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:37:01" (1/3) ... [2023-11-19 07:37:04,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d34adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:04, skipping insertion in model container [2023-11-19 07:37:04,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:37:02" (2/3) ... [2023-11-19 07:37:04,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d34adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:37:04, skipping insertion in model container [2023-11-19 07:37:04,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:37:04" (3/3) ... [2023-11-19 07:37:04,711 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_twice_3t.i [2023-11-19 07:37:04,722 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:37:04,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:37:04,739 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2023-11-19 07:37:04,739 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:37:05,059 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:37:05,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 993 places, 1081 transitions, 2169 flow [2023-11-19 07:37:06,418 INFO L124 PetriNetUnfolderBase]: 137/1582 cut-off events. [2023-11-19 07:37:06,418 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:37:06,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 1582 events. 137/1582 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5832 event pairs, 0 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 935. Up to 4 conditions per place. [2023-11-19 07:37:06,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 993 places, 1081 transitions, 2169 flow [2023-11-19 07:37:06,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 993 places, 1081 transitions, 2169 flow [2023-11-19 07:37:06,551 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:37:06,579 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 993 places, 1081 transitions, 2169 flow [2023-11-19 07:37:06,584 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 993 places, 1081 transitions, 2169 flow [2023-11-19 07:37:06,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 993 places, 1081 transitions, 2169 flow [2023-11-19 07:37:07,584 INFO L124 PetriNetUnfolderBase]: 137/1582 cut-off events. [2023-11-19 07:37:07,585 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:37:07,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 1582 events. 137/1582 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5832 event pairs, 0 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 935. Up to 4 conditions per place. [2023-11-19 07:37:07,919 INFO L119 LiptonReduction]: Number of co-enabled transitions 435006 [2023-11-19 07:37:42,036 WARN L293 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 115 DAG size of output: 107 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 07:37:48,779 WARN L293 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 115 DAG size of output: 107 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)