./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Division-2.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_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/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_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Division-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/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_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/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 bcd985be4d5b056143625ede780ed1bdcfd1a69390fda6644aa25539fa51e5a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:40:59,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:40:59,946 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 03:40:59,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:40:59,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:40:59,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:40:59,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:40:59,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:40:59,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:40:59,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:40:59,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:40:59,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:40:59,994 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:40:59,994 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 03:40:59,994 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 03:40:59,994 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 03:40:59,994 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 03:40:59,995 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 03:40:59,995 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 03:40:59,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:40:59,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 03:40:59,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:40:59,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:40:59,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 03:40:59,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 03:40:59,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 03:40:59,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:40:59,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:40:59,997 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 03:40:59,997 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:40:59,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:40:59,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:40:59,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:40:59,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:40:59,998 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 03:40:59,998 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 03:40:59,999 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_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/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 -> bcd985be4d5b056143625ede780ed1bdcfd1a69390fda6644aa25539fa51e5a7 [2024-11-28 03:41:00,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:41:00,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:41:00,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:41:00,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:41:00,343 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:41:00,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted/Division-2.c [2024-11-28 03:41:03,539 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/data/012e76eef/319575d4909f41f1b8c10550dd0f920e/FLAG0cef70836 [2024-11-28 03:41:03,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:41:03,789 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/sv-benchmarks/c/termination-crafted/Division-2.c [2024-11-28 03:41:03,799 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/data/012e76eef/319575d4909f41f1b8c10550dd0f920e/FLAG0cef70836 [2024-11-28 03:41:03,822 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/data/012e76eef/319575d4909f41f1b8c10550dd0f920e [2024-11-28 03:41:03,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:41:03,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:41:03,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:41:03,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:41:03,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:41:03,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:41:03" (1/1) ... [2024-11-28 03:41:03,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a20ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:03, skipping insertion in model container [2024-11-28 03:41:03,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:41:03" (1/1) ... [2024-11-28 03:41:03,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:41:04,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:41:04,014 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:41:04,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:41:04,040 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:41:04,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04 WrapperNode [2024-11-28 03:41:04,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:41:04,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:41:04,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:41:04,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:41:04,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,070 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2024-11-28 03:41:04,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:41:04,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:41:04,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:41:04,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:41:04,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,086 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 03:41:04,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,088 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:41:04,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:41:04,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:41:04,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:41:04,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (1/1) ... [2024-11-28 03:41:04,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 03:41:04,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:41:04,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 03:41:04,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 03:41:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:41:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:41:04,209 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:41:04,211 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:41:04,285 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-28 03:41:04,286 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:41:04,299 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:41:04,300 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:41:04,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:41:04 BoogieIcfgContainer [2024-11-28 03:41:04,301 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:41:04,302 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 03:41:04,302 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 03:41:04,309 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 03:41:04,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:41:04,310 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:41:03" (1/3) ... [2024-11-28 03:41:04,312 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@173c689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:41:04, skipping insertion in model container [2024-11-28 03:41:04,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:41:04,313 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:41:04" (2/3) ... [2024-11-28 03:41:04,314 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@173c689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:41:04, skipping insertion in model container [2024-11-28 03:41:04,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 03:41:04,314 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:41:04" (3/3) ... [2024-11-28 03:41:04,315 INFO L363 chiAutomizerObserver]: Analyzing ICFG Division-2.c [2024-11-28 03:41:04,389 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 03:41:04,389 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 03:41:04,390 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 03:41:04,390 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 03:41:04,390 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 03:41:04,391 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 03:41:04,391 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 03:41:04,391 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 03:41:04,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 03:41:04,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 03:41:04,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:41:04,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:41:04,423 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:41:04,424 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:41:04,424 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 03:41:04,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 03:41:04,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 03:41:04,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 03:41:04,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 03:41:04,426 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 03:41:04,427 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 03:41:04,436 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~y~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2024-11-28 03:41:04,436 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~y~0#1 >= 0 && main_~y~0#1 <= 10;" "main_~y~0#1 := (if 1 + 2 * main_~y~0#1 < 0 && 0 != (1 + 2 * main_~y~0#1) % 2 then 1 + (1 + 2 * main_~y~0#1) / 2 else (1 + 2 * main_~y~0#1) / 2);" [2024-11-28 03:41:04,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 03:41:04,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:41:04,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078005967] [2024-11-28 03:41:04,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:04,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,533 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:41:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:41:04,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:04,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1221, now seen corresponding path program 1 times [2024-11-28 03:41:04,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:41:04,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536598031] [2024-11-28 03:41:04,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:04,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,586 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:41:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:41:04,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:04,601 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-11-28 03:41:04,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 03:41:04,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367998881] [2024-11-28 03:41:04,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:04,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:41:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,610 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:41:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 03:41:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,748 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:41:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:41:04,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:41:04 BoogieIcfgContainer [2024-11-28 03:41:04,776 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 03:41:04,776 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:41:04,776 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:41:04,777 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:41:04,777 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:41:04" (3/4) ... [2024-11-28 03:41:04,780 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 03:41:04,808 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:41:04,808 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:41:04,810 INFO L158 Benchmark]: Toolchain (without parser) took 982.43ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 56.8MB in the end (delta: 36.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 03:41:04,811 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:41:04,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.97ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 83.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:41:04,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.04ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.2MB in the end (delta: 844.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:41:04,812 INFO L158 Benchmark]: Boogie Preprocessor took 23.98ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 887.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:41:04,812 INFO L158 Benchmark]: RCFGBuilder took 205.64ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 73.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:41:04,813 INFO L158 Benchmark]: BuchiAutomizer took 473.70ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 58.5MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:41:04,813 INFO L158 Benchmark]: Witness Printer took 32.29ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 56.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:41:04,816 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.97ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 83.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.04ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.2MB in the end (delta: 844.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.98ms. Allocated memory is still 117.4MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 887.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 205.64ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 73.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 473.70ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 58.5MB in the end (delta: 14.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 32.29ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 56.8MB 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 0.3s. 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: 14]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L13] int y = __VERIFIER_nondet_int(); Loop: [L14] COND TRUE y >= 0 && y <= 10 [L15] y = (2*y + 1) / 2 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int y = __VERIFIER_nondet_int(); Loop: [L14] COND TRUE y >= 0 && y <= 10 [L15] y = (2*y + 1) / 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 03:41:04,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8805c5f4-d619-4ce8-b37b-5bbf5c29c38b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)