./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:29:02,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:29:02,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 04:29:02,283 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:29:02,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:29:02,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:29:02,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:29:02,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:29:02,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:29:02,328 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:29:02,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:29:02,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:29:02,329 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:29:02,330 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:29:02,330 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:29:02,330 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:29:02,330 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:29:02,330 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:29:02,330 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:29:02,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:29:02,331 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:29:02,331 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:29:02,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:29:02,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:29:02,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:29:02,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:29:02,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:29:02,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:29:02,332 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:29:02,332 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:29:02,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:29:02,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:29:02,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:29:02,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:29:02,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:29:02,333 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:29:02,334 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB 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(F end) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb [2024-11-28 04:29:02,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:29:02,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:29:02,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:29:02,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:29:02,715 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:29:02,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2024-11-28 04:29:06,017 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/data/c6a7bc747/2095e0ec58804b20b44dfd382348ddc2/FLAGfac4f5b79 [2024-11-28 04:29:06,234 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:29:06,234 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2024-11-28 04:29:06,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/data/c6a7bc747/2095e0ec58804b20b44dfd382348ddc2/FLAGfac4f5b79 [2024-11-28 04:29:06,268 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/data/c6a7bc747/2095e0ec58804b20b44dfd382348ddc2 [2024-11-28 04:29:06,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:29:06,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:29:06,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:06,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:29:06,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:29:06,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591bd011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06, skipping insertion in model container [2024-11-28 04:29:06,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,304 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:29:06,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:06,503 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:29:06,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:29:06,534 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:29:06,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06 WrapperNode [2024-11-28 04:29:06,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:29:06,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:06,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:29:06,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:29:06,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,569 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2024-11-28 04:29:06,570 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:29:06,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:29:06,570 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:29:06,571 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:29:06,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,582 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,589 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 04:29:06,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,590 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,592 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,601 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,602 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:29:06,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:29:06,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:29:06,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:29:06,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (1/1) ... [2024-11-28 04:29:06,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:29:06,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:29:06,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:29:06,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:29:06,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:29:06,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:29:06,781 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:29:06,783 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:29:06,847 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-28 04:29:06,847 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:29:06,864 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:29:06,864 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:29:06,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:06 BoogieIcfgContainer [2024-11-28 04:29:06,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:29:06,870 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:29:06,870 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:29:06,881 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:29:06,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:29:06,882 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:29:06" (1/3) ... [2024-11-28 04:29:06,884 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738ef248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:29:06, skipping insertion in model container [2024-11-28 04:29:06,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:29:06,884 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:29:06" (2/3) ... [2024-11-28 04:29:06,885 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@738ef248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:29:06, skipping insertion in model container [2024-11-28 04:29:06,885 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:29:06,885 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:06" (3/3) ... [2024-11-28 04:29:06,887 INFO L363 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig1.c [2024-11-28 04:29:06,975 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:29:06,975 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:29:06,975 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:29:06,975 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:29:06,976 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:29:06,976 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:29:06,976 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:29:06,976 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:29:06,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:07,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:29:07,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:29:07,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:29:07,009 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:29:07,009 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:29:07,009 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:29:07,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:29:07,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:29:07,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:29:07,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:29:07,011 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:29:07,011 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:29:07,019 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2024-11-28 04:29:07,020 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 <= 10;" "assume !(main_~x~0#1 > 6);" [2024-11-28 04:29:07,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 04:29:07,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:29:07,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963263795] [2024-11-28 04:29:07,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:07,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,134 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:29:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:29:07,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:07,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1225, now seen corresponding path program 1 times [2024-11-28 04:29:07,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:29:07,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805916359] [2024-11-28 04:29:07,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:07,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,172 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:29:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:29:07,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:29:07,179 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2024-11-28 04:29:07,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:29:07,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431851115] [2024-11-28 04:29:07,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:29:07,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:29:07,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,187 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:29:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:29:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,253 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:29:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:29:07,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:29:07 BoogieIcfgContainer [2024-11-28 04:29:07,281 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:29:07,282 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:29:07,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:29:07,283 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:29:07,285 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:29:06" (3/4) ... [2024-11-28 04:29:07,287 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 04:29:07,324 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:29:07,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:29:07,326 INFO L158 Benchmark]: Toolchain (without parser) took 1050.17ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 58.1MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 04:29:07,326 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 86.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:07,327 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.13ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 82.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:07,327 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.48ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:07,327 INFO L158 Benchmark]: Boogie Preprocessor took 34.56ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.6MB in the end (delta: 887.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:07,328 INFO L158 Benchmark]: RCFGBuilder took 259.38ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 72.4MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:29:07,328 INFO L158 Benchmark]: BuchiAutomizer took 410.76ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 59.9MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:29:07,329 INFO L158 Benchmark]: Witness Printer took 42.41ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:29:07,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory was 39.3MB in the beginning and 39.2MB in the end (delta: 86.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.13ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 82.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.48ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.56ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 80.6MB in the end (delta: 887.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 259.38ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 72.4MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 410.76ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 59.9MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 42.41ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() Loop: [L17] COND TRUE x <= 10 [L18] COND FALSE !(x > 6) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() Loop: [L17] COND TRUE x <= 10 [L18] COND FALSE !(x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 04:29:07,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f808e8cd-6f18-4b0c-822d-697ce763fb2a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)