./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/divinefifo_1w1r.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_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/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_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/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_fe44b8c3-30b9-4952-b9fb-e41769a627d3/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 43c4691e367ff0d8a9949fa90f15eddbc091ab75ed1546de74dafe83c2376639 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:03:44,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:03:44,972 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:03:44,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:03:44,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:03:45,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:03:45,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:03:45,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:03:45,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:03:45,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:03:45,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:03:45,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:03:45,020 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:03:45,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:03:45,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:03:45,022 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:03:45,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:03:45,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:03:45,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:03:45,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:03:45,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:03:45,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:03:45,028 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:03:45,028 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:03:45,029 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:03:45,030 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:03:45,030 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:03:45,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:03:45,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:03:45,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:03:45,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:03:45,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:03:45,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:03:45,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:03:45,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:03:45,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:03:45,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:03:45,037 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:03:45,037 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:03:45,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:03:45,038 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:03:45,038 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_fe44b8c3-30b9-4952-b9fb-e41769a627d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c4691e367ff0d8a9949fa90f15eddbc091ab75ed1546de74dafe83c2376639 [2023-11-06 22:03:45,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:03:45,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:03:45,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:03:45,415 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:03:45,416 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:03:45,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i [2023-11-06 22:03:49,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:03:49,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:03:49,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/sv-benchmarks/c/pthread-divine/divinefifo_1w1r.i [2023-11-06 22:03:49,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/data/0a9c00860/370c4a3f2a8944219f1715764a4e43e5/FLAGba29368d6 [2023-11-06 22:03:49,597 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/data/0a9c00860/370c4a3f2a8944219f1715764a4e43e5 [2023-11-06 22:03:49,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:03:49,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:03:49,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:49,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:03:49,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:03:49,611 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:49" (1/1) ... [2023-11-06 22:03:49,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c714a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:49, skipping insertion in model container [2023-11-06 22:03:49,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:49" (1/1) ... [2023-11-06 22:03:49,668 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:03:49,818 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:03:50,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:50,497 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:03:50,512 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:03:50,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:50,745 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:50,756 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:03:50,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50 WrapperNode [2023-11-06 22:03:50,757 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:50,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:50,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:03:50,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:03:50,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:50,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,010 INFO L138 Inliner]: procedures = 278, calls = 110, calls flagged for inlining = 27, calls inlined = 29, statements flattened = 959 [2023-11-06 22:03:51,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:51,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:03:51,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:03:51,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:03:51,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,159 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:03:51,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:03:51,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:03:51,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:03:51,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (1/1) ... [2023-11-06 22:03:51,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:03:51,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:51,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:03:51,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe44b8c3-30b9-4952-b9fb-e41769a627d3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:03:51,299 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2023-11-06 22:03:51,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2023-11-06 22:03:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:03:51,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:03:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:03:51,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:03:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:03:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:03:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:03:51,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:03:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:03:51,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:03:51,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:03:51,308 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 22:03:51,590 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:03:51,593 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:03:53,378 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:03:53,401 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:03:53,402 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:03:53,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:53 BoogieIcfgContainer [2023-11-06 22:03:53,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:03:53,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:03:53,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:03:53,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:03:53,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:03:49" (1/3) ... [2023-11-06 22:03:53,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c558fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:53, skipping insertion in model container [2023-11-06 22:03:53,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:50" (2/3) ... [2023-11-06 22:03:53,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c558fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:53, skipping insertion in model container [2023-11-06 22:03:53,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:53" (3/3) ... [2023-11-06 22:03:53,416 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.i [2023-11-06 22:03:53,426 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:03:53,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:03:53,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 97 error locations. [2023-11-06 22:03:53,439 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:03:53,763 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:03:53,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1154 transitions, 2315 flow [2023-11-06 22:03:54,697 INFO L124 PetriNetUnfolderBase]: 43/1153 cut-off events. [2023-11-06 22:03:54,699 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:03:54,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 1153 events. 43/1153 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3420 event pairs, 0 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 834. Up to 3 conditions per place. [2023-11-06 22:03:54,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1154 transitions, 2315 flow [2023-11-06 22:03:54,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1098 places, 1137 transitions, 2280 flow [2023-11-06 22:03:54,780 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:03:54,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1098 places, 1137 transitions, 2280 flow [2023-11-06 22:03:54,806 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1098 places, 1137 transitions, 2280 flow [2023-11-06 22:03:54,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1098 places, 1137 transitions, 2280 flow [2023-11-06 22:03:55,399 INFO L124 PetriNetUnfolderBase]: 43/1137 cut-off events. [2023-11-06 22:03:55,399 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:03:55,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 1137 events. 43/1137 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3307 event pairs, 0 based on Foata normal form. 0/998 useless extension candidates. Maximal degree in co-relation 834. Up to 3 conditions per place. [2023-11-06 22:03:55,541 INFO L119 LiptonReduction]: Number of co-enabled transitions 224770 [2023-11-06 22:04:43,430 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 94 DAG size of output: 88 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:05:19,467 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:05:33,674 WARN L293 SmtUtils]: Spent 9.54s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:05:40,675 WARN L293 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:06:14,244 WARN L293 SmtUtils]: Spent 18.96s on a formula simplification. DAG size of input: 167 DAG size of output: 165 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:06:23,970 WARN L293 SmtUtils]: Spent 9.72s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:06:43,340 WARN L293 SmtUtils]: Spent 19.37s on a formula simplification. DAG size of input: 167 DAG size of output: 165 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:06:53,822 WARN L293 SmtUtils]: Spent 10.48s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:07:09,423 WARN L293 SmtUtils]: Spent 15.57s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:07:19,794 WARN L293 SmtUtils]: Spent 10.37s on a formula simplification that was a NOOP. DAG size: 144 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:07:37,435 WARN L293 SmtUtils]: Spent 17.64s on a formula simplification that was a NOOP. DAG size: 177 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:07:51,447 WARN L293 SmtUtils]: Spent 14.01s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:08:03,070 WARN L293 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 114 DAG size of output: 102 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)