./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:39:18,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:39:18,696 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:39:18,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:39:18,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:39:18,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:39:18,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:39:18,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:39:18,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:39:18,761 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:39:18,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:39:18,764 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:39:18,764 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:39:18,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:39:18,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:39:18,767 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:39:18,768 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:39:18,768 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:39:18,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:39:18,769 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:39:18,769 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:39:18,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:39:18,770 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:39:18,770 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:39:18,771 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:39:18,771 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:39:18,771 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:39:18,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:39:18,773 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:39:18,773 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:39:18,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:39:18,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:39:18,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:39:18,776 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:39:18,776 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:39:18,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:39:18,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:39:18,776 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:39:18,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:39:18,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:39:18,777 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:39:18,778 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_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc [2023-11-06 22:39:19,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:39:19,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:39:19,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:39:19,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:39:19,151 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:39:19,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-divine/barrier_3t.i [2023-11-06 22:39:22,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:39:22,867 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:39:22,868 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/sv-benchmarks/c/pthread-divine/barrier_3t.i [2023-11-06 22:39:22,894 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/data/54585dd57/c92ca4911dfe41f6943c9f1756cf1cda/FLAG0bbd93522 [2023-11-06 22:39:22,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/data/54585dd57/c92ca4911dfe41f6943c9f1756cf1cda [2023-11-06 22:39:22,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:39:22,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:39:22,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:39:22,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:39:22,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:39:22,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:22" (1/1) ... [2023-11-06 22:39:22,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d32827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:22, skipping insertion in model container [2023-11-06 22:39:22,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:39:22" (1/1) ... [2023-11-06 22:39:23,009 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:39:23,193 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:39:23,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:39:23,645 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:39:23,672 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:39:23,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:39:23,796 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:39:23,807 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:39:23,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23 WrapperNode [2023-11-06 22:39:23,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:39:23,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:39:23,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:39:23,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:39:23,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:23,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:23,988 INFO L138 Inliner]: procedures = 174, calls = 96, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1035 [2023-11-06 22:39:23,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:39:23,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:39:23,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:39:23,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:39:24,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,173 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:39:24,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:39:24,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:39:24,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:39:24,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (1/1) ... [2023-11-06 22:39:24,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:39:24,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:39:24,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:39:24,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaf23a3e-1261-4b9c-91d4-c8f177b37061/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:39:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:39:24,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:39:24,370 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:39:24,370 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-06 22:39:24,371 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-06 22:39:24,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:39:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:39:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:39:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:39:24,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:39:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:39:24,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:39:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:39:24,379 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:39:24,645 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:39:24,649 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:39:26,396 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:39:26,419 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:39:26,420 INFO L302 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-06 22:39:26,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:26 BoogieIcfgContainer [2023-11-06 22:39:26,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:39:26,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:39:26,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:39:26,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:39:26,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:39:22" (1/3) ... [2023-11-06 22:39:26,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b081fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:26, skipping insertion in model container [2023-11-06 22:39:26,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:39:23" (2/3) ... [2023-11-06 22:39:26,439 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b081fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:39:26, skipping insertion in model container [2023-11-06 22:39:26,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:39:26" (3/3) ... [2023-11-06 22:39:26,441 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_3t.i [2023-11-06 22:39:26,452 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:39:26,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:39:26,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2023-11-06 22:39:26,466 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:39:26,762 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:39:26,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1123 places, 1213 transitions, 2433 flow [2023-11-06 22:39:28,210 INFO L124 PetriNetUnfolderBase]: 141/1788 cut-off events. [2023-11-06 22:39:28,211 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:39:28,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1788 events. 141/1788 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7182 event pairs, 0 based on Foata normal form. 0/1499 useless extension candidates. Maximal degree in co-relation 1085. Up to 4 conditions per place. [2023-11-06 22:39:28,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 1123 places, 1213 transitions, 2433 flow [2023-11-06 22:39:28,332 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1123 places, 1213 transitions, 2433 flow [2023-11-06 22:39:28,336 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:39:28,347 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1123 places, 1213 transitions, 2433 flow [2023-11-06 22:39:28,351 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1123 places, 1213 transitions, 2433 flow [2023-11-06 22:39:28,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1123 places, 1213 transitions, 2433 flow [2023-11-06 22:39:29,551 INFO L124 PetriNetUnfolderBase]: 141/1788 cut-off events. [2023-11-06 22:39:29,551 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:39:29,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1793 conditions, 1788 events. 141/1788 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7182 event pairs, 0 based on Foata normal form. 0/1499 useless extension candidates. Maximal degree in co-relation 1085. Up to 4 conditions per place. [2023-11-06 22:39:29,882 INFO L119 LiptonReduction]: Number of co-enabled transitions 586810 [2023-11-06 22:40:45,934 WARN L293 SmtUtils]: Spent 24.27s on a formula simplification. DAG size of input: 140 DAG size of output: 136 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:40:54,568 WARN L293 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:41:16,686 WARN L293 SmtUtils]: Spent 22.12s on a formula simplification. DAG size of input: 140 DAG size of output: 136 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:41:24,123 WARN L293 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 128 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:42:28,366 WARN L293 SmtUtils]: Spent 1.03m on a formula simplification. DAG size of input: 172 DAG size of output: 166 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:42:41,090 WARN L293 SmtUtils]: Spent 12.72s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:43:39,576 WARN L293 SmtUtils]: Spent 58.48s on a formula simplification. DAG size of input: 187 DAG size of output: 175 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)