./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Rotation180-1.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_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/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_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/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_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/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 fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:03:12,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:03:12,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 20:03:12,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:03:12,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:03:12,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:03:12,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:03:12,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:03:12,938 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:03:12,938 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:03:12,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:03:12,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:03:12,939 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:03:12,939 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:03:12,939 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:03:12,939 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:03:12,939 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:03:12,939 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:03:12,939 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:03:12,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:03:12,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:03:12,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:03:12,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:03:12,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:03:12,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:03:12,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:03:12,941 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:03:12,941 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:03:12,941 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:03:12,941 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:03:12,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:03:12,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:03:12,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:03:12,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:03:12,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:03:12,942 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:03:12,942 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_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/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 -> fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 [2024-11-27 20:03:13,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:03:13,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:03:13,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:03:13,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:03:13,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:03:13,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c [2024-11-27 20:03:16,159 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/data/77e2edf4d/588a8fb18dd44de7a112ae3243fd6796/FLAGdd4cccd83 [2024-11-27 20:03:16,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:03:16,452 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2024-11-27 20:03:16,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/data/77e2edf4d/588a8fb18dd44de7a112ae3243fd6796/FLAGdd4cccd83 [2024-11-27 20:03:16,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/data/77e2edf4d/588a8fb18dd44de7a112ae3243fd6796 [2024-11-27 20:03:16,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:03:16,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:03:16,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:03:16,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:03:16,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:03:16,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2d08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16, skipping insertion in model container [2024-11-27 20:03:16,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:03:16,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:03:16,922 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:03:16,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:03:16,948 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:03:16,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16 WrapperNode [2024-11-27 20:03:16,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:03:16,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:03:16,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:03:16,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:03:16,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,977 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-27 20:03:16,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:03:16,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:03:16,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:03:16,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:03:16,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,989 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,994 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 20:03:16,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,998 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:16,998 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:17,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:17,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:17,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:17,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:03:17,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:03:17,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:03:17,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:03:17,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (1/1) ... [2024-11-27 20:03:17,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:03:17,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:03:17,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:03:17,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:03:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:03:17,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:03:17,173 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:03:17,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:03:17,249 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-27 20:03:17,249 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:03:17,262 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:03:17,263 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:03:17,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:03:17 BoogieIcfgContainer [2024-11-27 20:03:17,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:03:17,265 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:03:17,266 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:03:17,273 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:03:17,274 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:03:17,274 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:03:16" (1/3) ... [2024-11-27 20:03:17,276 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a155e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:03:17, skipping insertion in model container [2024-11-27 20:03:17,276 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:03:17,277 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:03:16" (2/3) ... [2024-11-27 20:03:17,277 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61a155e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:03:17, skipping insertion in model container [2024-11-27 20:03:17,277 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:03:17,278 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:03:17" (3/3) ... [2024-11-27 20:03:17,280 INFO L363 chiAutomizerObserver]: Analyzing ICFG Rotation180-1.c [2024-11-27 20:03:17,345 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:03:17,345 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:03:17,345 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:03:17,346 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:03:17,346 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:03:17,346 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:03:17,346 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:03:17,346 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:03:17,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-11-27 20:03:17,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-27 20:03:17,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:03:17,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:03:17,372 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-27 20:03:17,372 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-27 20:03:17,373 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:03:17,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2024-11-27 20:03:17,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-11-27 20:03:17,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:03:17,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:03:17,375 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-27 20:03:17,375 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-11-27 20:03:17,382 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~oldx~0#1, main_~x~0#1, main_~y~0#1;havoc main_~oldx~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~x~0#1 >= -2147483647);" "assume !!(main_~y~0#1 >= -2147483647);" [2024-11-27 20:03:17,382 INFO L749 eck$LassoCheckResult]: Loop: "main_~oldx~0#1 := main_~x~0#1;main_~x~0#1 := -main_~y~0#1;main_~y~0#1 := main_~oldx~0#1;" [2024-11-27 20:03:17,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:17,388 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-11-27 20:03:17,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:03:17,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136587296] [2024-11-27 20:03:17,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:17,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,488 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:03:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:03:17,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:17,508 INFO L85 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2024-11-27 20:03:17,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:03:17,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030397730] [2024-11-27 20:03:17,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:17,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,518 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:03:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:03:17,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:03:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash 28695853, now seen corresponding path program 1 times [2024-11-27 20:03:17,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:03:17,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499611895] [2024-11-27 20:03:17,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:03:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:03:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,531 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:03:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:03:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,680 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:03:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:03:17,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:03:17 BoogieIcfgContainer [2024-11-27 20:03:17,708 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:03:17,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:03:17,709 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:03:17,709 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:03:17,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:03:17" (3/4) ... [2024-11-27 20:03:17,711 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 20:03:17,744 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:03:17,744 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:03:17,745 INFO L158 Benchmark]: Toolchain (without parser) took 994.55ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 81.9MB in the end (delta: 37.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-27 20:03:17,746 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:03:17,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.02ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 109.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:03:17,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.84ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 108.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:03:17,747 INFO L158 Benchmark]: Boogie Preprocessor took 30.80ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 107.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:03:17,747 INFO L158 Benchmark]: RCFGBuilder took 254.54ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 99.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:03:17,748 INFO L158 Benchmark]: BuchiAutomizer took 442.70ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 83.7MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:03:17,748 INFO L158 Benchmark]: Witness Printer took 35.49ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:03:17,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.02ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 109.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.84ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 108.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.80ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 107.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 254.54ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 99.0MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 442.70ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 83.7MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 35.49ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 81.9MB in the end (delta: 1.6MB). 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 0.3s. 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: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L21] COND FALSE !(!(x>=-2147483647)) VAL [x=0] [L22] COND FALSE !(!(y>=-2147483647)) VAL [x=0, y=0] Loop: [L24] oldx = x [L25] x = -y [L26] y = oldx End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L21] COND FALSE !(!(x>=-2147483647)) VAL [x=0] [L22] COND FALSE !(!(y>=-2147483647)) VAL [x=0, y=0] Loop: [L24] oldx = x [L25] x = -y [L26] y = oldx End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 20:03:17,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6fa92a9-dea0-4bd1-9833-1b265dbe022d/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)