./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:16:20,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:16:20,283 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:16:20,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:16:20,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:16:20,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:16:20,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:16:20,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:16:20,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:16:20,341 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:16:20,342 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:16:20,343 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:16:20,344 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:16:20,345 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:16:20,346 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:16:20,346 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:16:20,347 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:16:20,347 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:16:20,348 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:16:20,348 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:16:20,349 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:16:20,349 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:16:20,351 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:16:20,351 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:16:20,352 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:16:20,352 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:16:20,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:16:20,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:16:20,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:16:20,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:16:20,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:16:20,356 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:16:20,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:16:20,356 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:16:20,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:16:20,357 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:16:20,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:16:20,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:16:20,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:20,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:16:20,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:16:20,359 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:16:20,359 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:16:20,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:16:20,360 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:16:20,360 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:16:20,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:16:20,361 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2023-11-19 05:16:20,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:16:20,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:16:20,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:16:20,652 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:16:20,652 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:16:20,654 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-19 05:16:23,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:16:24,387 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:16:24,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-19 05:16:24,423 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/data/f8af9a4c1/a20f1ec833894aa7a9f530ed82409f92/FLAG7f9a7bda1 [2023-11-19 05:16:24,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/data/f8af9a4c1/a20f1ec833894aa7a9f530ed82409f92 [2023-11-19 05:16:24,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:16:24,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:16:24,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:24,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:16:24,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:16:24,462 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:24" (1/1) ... [2023-11-19 05:16:24,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2799746d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:24, skipping insertion in model container [2023-11-19 05:16:24,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:16:24" (1/1) ... [2023-11-19 05:16:24,552 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:16:25,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:25,524 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:16:25,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:16:25,832 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:16:25,842 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:16:25,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25 WrapperNode [2023-11-19 05:16:25,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:16:25,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:25,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:16:25,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:16:25,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:25,930 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,058 INFO L138 Inliner]: procedures = 428, calls = 127, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 876 [2023-11-19 05:16:26,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:16:26,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:16:26,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:16:26,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:16:26,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,231 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:16:26,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:16:26,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:16:26,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:16:26,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (1/1) ... [2023-11-19 05:16:26,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:16:26,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:16:26,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:16:26,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8b211d8-70bc-47ca-91c3-bfc00a1b38d7/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:16:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-11-19 05:16:26,331 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-11-19 05:16:26,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:16:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:16:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:16:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:16:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 05:16:26,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:16:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:16:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:16:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:16:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:16:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:16:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-11-19 05:16:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-11-19 05:16:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:16:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:16:26,339 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:16:26,570 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:16:26,572 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:16:28,268 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:28,298 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:28,298 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-19 05:16:28,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:28 BoogieIcfgContainer [2023-11-19 05:16:28,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:16:28,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:16:28,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:16:28,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:16:28,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:16:24" (1/3) ... [2023-11-19 05:16:28,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad1262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:28, skipping insertion in model container [2023-11-19 05:16:28,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:16:25" (2/3) ... [2023-11-19 05:16:28,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad1262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:28, skipping insertion in model container [2023-11-19 05:16:28,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:28" (3/3) ... [2023-11-19 05:16:28,331 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-11-19 05:16:28,343 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:16:28,357 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:16:28,357 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2023-11-19 05:16:28,357 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:16:28,721 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 05:16:28,833 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:16:28,862 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 924 places, 969 transitions, 1958 flow [2023-11-19 05:16:28,870 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 924 places, 969 transitions, 1958 flow [2023-11-19 05:16:28,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 924 places, 969 transitions, 1958 flow [2023-11-19 05:16:30,128 INFO L124 PetriNetUnfolderBase]: 111/2058 cut-off events. [2023-11-19 05:16:30,129 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 05:16:30,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 2058 events. 111/2058 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 13034 event pairs, 0 based on Foata normal form. 0/1782 useless extension candidates. Maximal degree in co-relation 1077. Up to 16 conditions per place. [2023-11-19 05:16:30,581 INFO L119 LiptonReduction]: Number of co-enabled transitions 428024