./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/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_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/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_5e67b592-1fec-4398-b458-2bab9e499779/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 bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:59:39,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:59:39,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:59:39,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:59:39,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:59:39,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:59:39,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:59:39,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:59:39,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:59:39,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:59:39,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:59:39,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:59:39,160 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:59:39,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:59:39,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:59:39,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:59:39,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:59:39,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:59:39,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:59:39,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:59:39,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:59:39,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:59:39,166 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:59:39,167 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:59:39,167 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:59:39,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:59:39,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:59:39,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:59:39,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:59:39,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:59:39,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:39,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:59:39,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:59:39,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:59:39,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:59:39,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:59:39,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:59:39,174 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:59:39,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:59:39,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:59:39,175 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:59:39,175 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_5e67b592-1fec-4398-b458-2bab9e499779/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2023-11-06 21:59:39,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:59:39,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:59:39,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:59:39,508 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:59:39,508 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:59:39,509 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2023-11-06 21:59:42,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:59:43,100 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:59:43,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2023-11-06 21:59:43,122 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/data/742c9b39c/adfee43a331d445cbf56c2f5cba401b0/FLAGf2aa01cd3 [2023-11-06 21:59:43,139 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/data/742c9b39c/adfee43a331d445cbf56c2f5cba401b0 [2023-11-06 21:59:43,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:59:43,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:59:43,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:43,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:59:43,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:59:43,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:43" (1/1) ... [2023-11-06 21:59:43,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18536305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:43, skipping insertion in model container [2023-11-06 21:59:43,155 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:43" (1/1) ... [2023-11-06 21:59:43,215 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:59:43,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:43,918 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:59:43,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:44,131 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:59:44,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44 WrapperNode [2023-11-06 21:59:44,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:44,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:44,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:59:44,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:59:44,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,221 INFO L138 Inliner]: procedures = 370, calls = 29, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 228 [2023-11-06 21:59:44,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:44,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:59:44,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:59:44,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:59:44,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,271 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:59:44,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:59:44,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:59:44,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:59:44,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (1/1) ... [2023-11-06 21:59:44,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:44,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:44,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:44,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e67b592-1fec-4398-b458-2bab9e499779/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:59:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:59:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:59:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:59:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:59:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:59:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 21:59:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:59:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:59:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:59:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 21:59:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 21:59:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:59:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:59:44,379 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:59:44,599 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:59:44,601 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:59:45,212 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:59:45,231 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:59:45,231 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:59:45,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:45 BoogieIcfgContainer [2023-11-06 21:59:45,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:59:45,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:59:45,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:59:45,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:59:45,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:43" (1/3) ... [2023-11-06 21:59:45,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6736e1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:45, skipping insertion in model container [2023-11-06 21:59:45,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:44" (2/3) ... [2023-11-06 21:59:45,247 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6736e1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:45, skipping insertion in model container [2023-11-06 21:59:45,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:45" (3/3) ... [2023-11-06 21:59:45,249 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2023-11-06 21:59:45,268 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:59:45,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:59:45,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-06 21:59:45,278 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:59:45,414 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:59:45,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 272 transitions, 548 flow [2023-11-06 21:59:45,623 INFO L124 PetriNetUnfolderBase]: 4/271 cut-off events. [2023-11-06 21:59:45,624 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:45,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 271 events. 4/271 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2023-11-06 21:59:45,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 272 transitions, 548 flow [2023-11-06 21:59:45,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 271 transitions, 545 flow [2023-11-06 21:59:45,652 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:59:45,677 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 271 places, 271 transitions, 545 flow [2023-11-06 21:59:45,681 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 271 places, 271 transitions, 545 flow [2023-11-06 21:59:45,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 271 transitions, 545 flow [2023-11-06 21:59:45,792 INFO L124 PetriNetUnfolderBase]: 4/271 cut-off events. [2023-11-06 21:59:45,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:45,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 271 events. 4/271 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2023-11-06 21:59:45,801 INFO L119 LiptonReduction]: Number of co-enabled transitions 6586 [2023-11-06 22:00:18,261 WARN L293 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 115 DAG size of output: 107 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:00:28,758 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 115 DAG size of output: 107 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:00:49,508 WARN L293 SmtUtils]: Spent 8.86s on a formula simplification that was a NOOP. DAG size: 162 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:00:57,607 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:01:07,267 WARN L293 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:01:24,027 WARN L293 SmtUtils]: Spent 16.76s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)