./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:01,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:01,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:16:01,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:01,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:01,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:01,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:01,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:01,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:16:01,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:16:01,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:01,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:01,253 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:01,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:01,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:16:01,256 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:01,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:01,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:01,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:01,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:16:01,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:16:01,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:16:01,261 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:16:01,262 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:01,262 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:16:01,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:01,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:01,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:01,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:01,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:01,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:16:01,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:01,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:01,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:16:01,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:16:01,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:01,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:16:01,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:16:01,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:16:01,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:16:01,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:16:01,270 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_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 [2024-10-31 22:16:01,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:01,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:01,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:01,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:01,639 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:01,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack-race.i Unable to find full path for "g++" [2024-10-31 22:16:03,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:04,270 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:04,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/sv-benchmarks/c/pthread-complex/elimination_backoff_stack-race.i [2024-10-31 22:16:04,302 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/data/ac0935caa/39afbf669bc440ce8d7f444b5594584f/FLAGb7cd77bfc [2024-10-31 22:16:04,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/data/ac0935caa/39afbf669bc440ce8d7f444b5594584f [2024-10-31 22:16:04,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:04,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:04,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:04,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:04,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:04,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:04" (1/1) ... [2024-10-31 22:16:04,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29181ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:04, skipping insertion in model container [2024-10-31 22:16:04,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:04" (1/1) ... [2024-10-31 22:16:04,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:05,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:05,443 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:05,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:05,691 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:05,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05 WrapperNode [2024-10-31 22:16:05,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:05,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:05,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:05,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:05,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,747 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,095 INFO L138 Inliner]: procedures = 396, calls = 203, calls flagged for inlining = 53, calls inlined = 218, statements flattened = 7601 [2024-10-31 22:16:06,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:06,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:06,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:06,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:06,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,188 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,189 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,746 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:06,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:06,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:06,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:06,799 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:06,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:06,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:06,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:06,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1145e44d-3da5-4b1c-82e6-26112cc9d1d6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:16:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:16:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:16:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-31 22:16:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2024-10-31 22:16:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2024-10-31 22:16:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2024-10-31 22:16:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2024-10-31 22:16:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2024-10-31 22:16:06,880 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2024-10-31 22:16:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:06,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-31 22:16:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-10-31 22:16:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:16:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2024-10-31 22:16:06,882 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2024-10-31 22:16:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2024-10-31 22:16:06,883 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2024-10-31 22:16:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2024-10-31 22:16:06,883 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2024-10-31 22:16:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2024-10-31 22:16:06,883 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2024-10-31 22:16:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:16:06,889 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:16:07,518 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:07,521 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:17,713 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:16:17,714 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:29,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:29,214 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:16:29,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:29 BoogieIcfgContainer [2024-10-31 22:16:29,215 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:29,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:16:29,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:16:29,221 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:16:29,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:16:04" (1/3) ... [2024-10-31 22:16:29,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb0d87b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:29, skipping insertion in model container [2024-10-31 22:16:29,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (2/3) ... [2024-10-31 22:16:29,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb0d87b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:29, skipping insertion in model container [2024-10-31 22:16:29,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:29" (3/3) ... [2024-10-31 22:16:29,225 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack-race.i [2024-10-31 22:16:29,245 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:16:29,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 621 error locations. [2024-10-31 22:16:29,247 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.