./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 10:55:41,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 10:55:41,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 10:55:41,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 10:55:41,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 10:55:41,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 10:55:41,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 10:55:41,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 10:55:41,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 10:55:41,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 10:55:41,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 10:55:41,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 10:55:41,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 10:55:41,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 10:55:41,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 10:55:41,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 10:55:41,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 10:55:41,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 10:55:41,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 10:55:41,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 10:55:41,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 10:55:41,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 10:55:41,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 10:55:41,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 10:55:41,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 10:55:41,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 10:55:41,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 10:55:41,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 10:55:41,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 10:55:41,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 10:55:41,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 10:55:41,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 10:55:41,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 10:55:41,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 10:55:41,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 10:55:41,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 10:55:41,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 10:55:41,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 10:55:41,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 10:55:41,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 10:55:41,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 10:55:41,441 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 10:55:41,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 10:55:41,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 10:55:41,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 10:55:41,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 10:55:41,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 10:55:41,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 10:55:41,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 10:55:41,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 10:55:41,464 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 10:55:41,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 10:55:41,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 10:55:41,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 10:55:41,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 10:55:41,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 10:55:41,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 10:55:41,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 10:55:41,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 10:55:41,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 10:55:41,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 10:55:41,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 10:55:41,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 10:55:41,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 10:55:41,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 10:55:41,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 10:55:41,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 10:55:41,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 10:55:41,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 10:55:41,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 10:55:41,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 10:55:41,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 10:55:41,468 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 10:55:41,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 10:55:41,469 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 10:55:41,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 10:55:41,469 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 10:55:41,469 INFO L138 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_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2022-12-13 10:55:41,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 10:55:41,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 10:55:41,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 10:55:41,691 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 10:55:41,691 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 10:55:41,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-12-13 10:55:44,253 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 10:55:44,488 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 10:55:44,488 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-12-13 10:55:44,503 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/data/933c8a2bb/cf53df260dec4655bbb78072bba78382/FLAGa36f1b362 [2022-12-13 10:55:44,516 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/data/933c8a2bb/cf53df260dec4655bbb78072bba78382 [2022-12-13 10:55:44,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 10:55:44,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 10:55:44,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 10:55:44,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 10:55:44,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 10:55:44,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:44" (1/1) ... [2022-12-13 10:55:44,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6fed3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:44, skipping insertion in model container [2022-12-13 10:55:44,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:44" (1/1) ... [2022-12-13 10:55:44,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 10:55:44,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 10:55:45,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-12-13 10:55:45,087 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 10:55:45,091 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 10:55:45,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:55:45,109 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 10:55:45,160 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-12-13 10:55:45,167 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 10:55:45,169 WARN L623 FunctionHandler]: Unknown extern function fflush [2022-12-13 10:55:45,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 10:55:45,265 INFO L208 MainTranslator]: Completed translation [2022-12-13 10:55:45,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45 WrapperNode [2022-12-13 10:55:45,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 10:55:45,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 10:55:45,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 10:55:45,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 10:55:45,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,317 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 458 [2022-12-13 10:55:45,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 10:55:45,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 10:55:45,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 10:55:45,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 10:55:45,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,374 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 10:55:45,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 10:55:45,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 10:55:45,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 10:55:45,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (1/1) ... [2022-12-13 10:55:45,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 10:55:45,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 10:55:45,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 10:55:45,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5376cf36-fe9e-40f3-9c52-2913664ef1b9/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2022-12-13 10:55:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 10:55:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 10:55:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 10:55:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 10:55:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2022-12-13 10:55:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2022-12-13 10:55:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 10:55:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 10:55:45,452 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 10:55:45,596 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 10:55:45,598 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 10:55:46,063 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 10:55:46,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 10:55:46,071 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-13 10:55:46,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:46 BoogieIcfgContainer [2022-12-13 10:55:46,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 10:55:46,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 10:55:46,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 10:55:46,077 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 10:55:46,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:55:44" (1/3) ... [2022-12-13 10:55:46,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6991f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:55:46, skipping insertion in model container [2022-12-13 10:55:46,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:45" (2/3) ... [2022-12-13 10:55:46,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6991f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:55:46, skipping insertion in model container [2022-12-13 10:55:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:46" (3/3) ... [2022-12-13 10:55:46,079 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2022-12-13 10:55:46,085 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 10:55:46,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 10:55:46,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 10:55:46,092 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 10:55:46,172 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 10:55:46,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 435 places, 479 transitions, 980 flow [2022-12-13 10:55:46,464 INFO L130 PetriNetUnfolder]: 109/1033 cut-off events. [2022-12-13 10:55:46,465 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 10:55:46,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 1033 events. 109/1033 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6102 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 543. Up to 16 conditions per place. [2022-12-13 10:55:46,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 435 places, 479 transitions, 980 flow [2022-12-13 10:55:46,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 479 transitions, 980 flow [2022-12-13 10:55:46,506 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 10:55:46,516 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 435 places, 479 transitions, 980 flow [2022-12-13 10:55:46,519 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 435 places, 479 transitions, 980 flow [2022-12-13 10:55:46,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 435 places, 479 transitions, 980 flow [2022-12-13 10:55:46,736 INFO L130 PetriNetUnfolder]: 109/1033 cut-off events. [2022-12-13 10:55:46,736 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 10:55:46,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 1033 events. 109/1033 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6102 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 543. Up to 16 conditions per place. [2022-12-13 10:55:46,799 INFO L119 LiptonReduction]: Number of co-enabled transitions 106902 [2022-12-13 10:56:10,102 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 10:56:19,211 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 10:57:07,001 WARN L233 SmtUtils]: Spent 43.17s on a formula simplification that was a NOOP. DAG size: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 10:57:47,345 WARN L233 SmtUtils]: Spent 40.34s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 10:58:27,501 WARN L233 SmtUtils]: Spent 40.15s on a formula simplification that was a NOOP. DAG size: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 10:59:10,129 WARN L233 SmtUtils]: Spent 42.63s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:00:29,483 WARN L233 SmtUtils]: Spent 1.32m on a formula simplification. DAG size of input: 272 DAG size of output: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:01:08,005 WARN L233 SmtUtils]: Spent 38.52s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:02:26,919 WARN L233 SmtUtils]: Spent 1.32m on a formula simplification. DAG size of input: 272 DAG size of output: 267 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:03:06,381 WARN L233 SmtUtils]: Spent 39.46s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:03:06,408 INFO L134 LiptonReduction]: Checked pairs total: 248112 [2022-12-13 11:03:06,408 INFO L136 LiptonReduction]: Total number of compositions: 472 [2022-12-13 11:03:06,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:03:06,423 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@706b41b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:03:06,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 11:03:06,430 INFO L130 PetriNetUnfolder]: 7/58 cut-off events. [2022-12-13 11:03:06,431 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:03:06,431 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:03:06,431 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-12-13 11:03:06,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:03:06,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:03:06,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1561037843, now seen corresponding path program 1 times [2022-12-13 11:03:06,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:03:06,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475487711] [2022-12-13 11:03:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:03:06,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:03:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:03:06,588 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:03:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:03:06,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:03:06,658 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:03:06,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-12-13 11:03:06,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-12-13 11:03:06,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 11:03:06,660 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-13 11:03:06,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:03:06,661 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:03:06,663 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 11:03:06,663 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 11:03:06,737 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-12-13 11:03:06,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 665 places, 734 transitions, 1516 flow [2022-12-13 11:03:07,760 INFO L130 PetriNetUnfolder]: 384/3352 cut-off events. [2022-12-13 11:03:07,760 INFO L131 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2022-12-13 11:03:07,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3449 conditions, 3352 events. 384/3352 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 26940 event pairs, 2 based on Foata normal form. 0/2975 useless extension candidates. Maximal degree in co-relation 1884. Up to 64 conditions per place. [2022-12-13 11:03:07,867 INFO L82 GeneralOperation]: Start removeDead. Operand has 665 places, 734 transitions, 1516 flow [2022-12-13 11:03:07,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 665 places, 734 transitions, 1516 flow [2022-12-13 11:03:07,893 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:03:07,894 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 665 places, 734 transitions, 1516 flow [2022-12-13 11:03:07,894 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 665 places, 734 transitions, 1516 flow [2022-12-13 11:03:07,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 665 places, 734 transitions, 1516 flow [2022-12-13 11:03:08,862 INFO L130 PetriNetUnfolder]: 384/3352 cut-off events. [2022-12-13 11:03:08,862 INFO L131 PetriNetUnfolder]: For 72/78 co-relation queries the response was YES. [2022-12-13 11:03:08,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3449 conditions, 3352 events. 384/3352 cut-off events. For 72/78 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 26940 event pairs, 2 based on Foata normal form. 0/2975 useless extension candidates. Maximal degree in co-relation 1884. Up to 64 conditions per place. [2022-12-13 11:03:09,201 INFO L119 LiptonReduction]: Number of co-enabled transitions 342760 [2022-12-13 11:03:55,331 WARN L233 SmtUtils]: Spent 25.68s on a formula simplification. DAG size of input: 185 DAG size of output: 183 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:04:08,913 WARN L233 SmtUtils]: Spent 13.58s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:04:38,161 WARN L233 SmtUtils]: Spent 29.24s on a formula simplification. DAG size of input: 185 DAG size of output: 183 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:04:53,821 WARN L233 SmtUtils]: Spent 15.66s on a formula simplification that was a NOOP. DAG size: 181 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:05:23,575 WARN L233 SmtUtils]: Spent 27.60s on a formula simplification that was a NOOP. DAG size: 231 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:05:45,727 WARN L233 SmtUtils]: Spent 22.15s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:06:25,489 WARN L233 SmtUtils]: Spent 39.76s on a formula simplification that was a NOOP. DAG size: 231 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:06:53,510 WARN L233 SmtUtils]: Spent 28.02s on a formula simplification that was a NOOP. DAG size: 221 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:08:01,871 WARN L233 SmtUtils]: Spent 1.14m on a formula simplification. DAG size of input: 265 DAG size of output: 263 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:08:33,547 WARN L233 SmtUtils]: Spent 31.67s on a formula simplification that was a NOOP. DAG size: 259 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:09:31,775 WARN L233 SmtUtils]: Spent 58.22s on a formula simplification. DAG size of input: 265 DAG size of output: 263 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:10:00,698 WARN L233 SmtUtils]: Spent 28.92s on a formula simplification that was a NOOP. DAG size: 259 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 11:10:38,650 WARN L233 SmtUtils]: Spent 37.45s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)