./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/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_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:31:12,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:31:12,590 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:31:12,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:31:12,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:31:12,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:31:12,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:31:12,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:31:12,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:31:12,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:31:12,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:31:12,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:31:12,639 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:31:12,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:31:12,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:31:12,641 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:31:12,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:31:12,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:31:12,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:31:12,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:31:12,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:31:12,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:31:12,646 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:31:12,646 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:31:12,647 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:31:12,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:31:12,648 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:31:12,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:31:12,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:31:12,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:31:12,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:31:12,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:31:12,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:31:12,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:31:12,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:31:12,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:31:12,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:31:12,655 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:31:12,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:31:12,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:31:12,656 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:31:12,657 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_65355957-1ec0-4d6e-9a1f-0b785335d230/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115e066856baca443b44a0f6b5ce54f74ba2b2820e5612bf4393c0e893767d55 [2023-11-06 22:31:12,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:31:12,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:31:12,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:31:12,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:31:12,985 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:31:12,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2023-11-06 22:31:15,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:31:16,381 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:31:16,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/sv-benchmarks/c/pthread-complex/elimination_backoff_stack.i [2023-11-06 22:31:16,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/data/6263b9193/f854fdad5e034fcf85d2e1bf4279b691/FLAG59f035713 [2023-11-06 22:31:16,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/data/6263b9193/f854fdad5e034fcf85d2e1bf4279b691 [2023-11-06 22:31:16,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:31:16,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:31:16,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:31:16,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:31:16,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:31:16,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:16" (1/1) ... [2023-11-06 22:31:16,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21115c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:16, skipping insertion in model container [2023-11-06 22:31:16,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:31:16" (1/1) ... [2023-11-06 22:31:16,554 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:31:17,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:31:17,497 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:31:17,598 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:31:17,718 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:31:17,718 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:31:17,726 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:31:17,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17 WrapperNode [2023-11-06 22:31:17,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:31:17,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:31:17,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:31:17,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:31:17,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:17,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:17,966 INFO L138 Inliner]: procedures = 397, calls = 215, calls flagged for inlining = 53, calls inlined = 218, statements flattened = 3877 [2023-11-06 22:31:17,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:31:17,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:31:17,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:31:17,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:31:17,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:17,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:31:18,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:31:18,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:31:18,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:31:18,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (1/1) ... [2023-11-06 22:31:18,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:31:18,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:31:18,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:31:18,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65355957-1ec0-4d6e-9a1f-0b785335d230/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:31:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:31:18,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:31:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:31:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:31:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:31:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:31:18,412 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush2 [2023-11-06 22:31:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush2 [2023-11-06 22:31:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush1 [2023-11-06 22:31:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush1 [2023-11-06 22:31:18,413 INFO L130 BoogieDeclarations]: Found specification of procedure instrPush0 [2023-11-06 22:31:18,413 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPush0 [2023-11-06 22:31:18,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:31:18,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:31:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:31:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:31:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:31:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:31:18,416 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop5 [2023-11-06 22:31:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop5 [2023-11-06 22:31:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop6 [2023-11-06 22:31:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop6 [2023-11-06 22:31:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop3 [2023-11-06 22:31:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop3 [2023-11-06 22:31:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure instrPop4 [2023-11-06 22:31:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure instrPop4 [2023-11-06 22:31:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:31:18,422 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 22:31:18,814 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:31:18,817 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:31:22,610 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:31:26,244 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:31:26,246 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:31:26,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:26 BoogieIcfgContainer [2023-11-06 22:31:26,253 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:31:26,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:31:26,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:31:26,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:31:26,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:31:16" (1/3) ... [2023-11-06 22:31:26,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1299b525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:26, skipping insertion in model container [2023-11-06 22:31:26,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:31:17" (2/3) ... [2023-11-06 22:31:26,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1299b525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:31:26, skipping insertion in model container [2023-11-06 22:31:26,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:31:26" (3/3) ... [2023-11-06 22:31:26,267 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_backoff_stack.i [2023-11-06 22:31:26,290 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:31:26,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:31:26,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2023-11-06 22:31:26,304 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:31:27,428 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:31:27,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2524 places, 2649 transitions, 5326 flow [2023-11-06 22:31:33,204 INFO L124 PetriNetUnfolderBase]: 147/2642 cut-off events. [2023-11-06 22:31:33,204 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:31:33,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2664 conditions, 2642 events. 147/2642 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 18272 event pairs, 0 based on Foata normal form. 0/2411 useless extension candidates. Maximal degree in co-relation 2592. Up to 6 conditions per place. [2023-11-06 22:31:33,363 INFO L82 GeneralOperation]: Start removeDead. Operand has 2524 places, 2649 transitions, 5326 flow [2023-11-06 22:31:33,487 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2517 places, 2642 transitions, 5305 flow [2023-11-06 22:31:33,492 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:31:33,507 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2517 places, 2642 transitions, 5305 flow [2023-11-06 22:31:33,512 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 2517 places, 2642 transitions, 5305 flow [2023-11-06 22:31:33,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2517 places, 2642 transitions, 5305 flow [2023-11-06 22:31:38,250 INFO L124 PetriNetUnfolderBase]: 147/2642 cut-off events. [2023-11-06 22:31:38,250 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:31:38,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2664 conditions, 2642 events. 147/2642 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 18284 event pairs, 0 based on Foata normal form. 0/2411 useless extension candidates. Maximal degree in co-relation 2592. Up to 6 conditions per place. [2023-11-06 22:31:40,476 INFO L119 LiptonReduction]: Number of co-enabled transitions 5651632 [2023-11-06 22:32:00,233 WARN L293 SmtUtils]: Spent 14.94s on a formula simplification. DAG size of input: 281 DAG size of output: 274 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:32:07,800 WARN L293 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 271 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:32:27,698 WARN L293 SmtUtils]: Spent 19.89s on a formula simplification. DAG size of input: 305 DAG size of output: 298 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:32:36,767 WARN L293 SmtUtils]: Spent 9.07s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:33:10,295 WARN L293 SmtUtils]: Spent 16.78s on a formula simplification. DAG size of input: 282 DAG size of output: 275 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:33:17,956 WARN L293 SmtUtils]: Spent 7.66s on a formula simplification that was a NOOP. DAG size: 275 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:33:37,150 WARN L293 SmtUtils]: Spent 19.19s on a formula simplification. DAG size of input: 306 DAG size of output: 299 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:33:47,101 WARN L293 SmtUtils]: Spent 9.95s on a formula simplification that was a NOOP. DAG size: 299 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:34:01,459 WARN L293 SmtUtils]: Spent 14.28s on a formula simplification. DAG size of input: 281 DAG size of output: 274 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:34:08,439 WARN L293 SmtUtils]: Spent 6.98s on a formula simplification that was a NOOP. DAG size: 271 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:34:28,225 WARN L293 SmtUtils]: Spent 19.78s on a formula simplification. DAG size of input: 305 DAG size of output: 298 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:34:38,131 WARN L293 SmtUtils]: Spent 9.90s on a formula simplification that was a NOOP. DAG size: 295 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:35:03,199 WARN L293 SmtUtils]: Spent 14.08s on a formula simplification. DAG size of input: 282 DAG size of output: 275 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:35:09,970 WARN L293 SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 275 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:35:30,911 WARN L293 SmtUtils]: Spent 20.94s on a formula simplification. DAG size of input: 306 DAG size of output: 299 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)