./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd --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 96e06713cc7b7bcca20fa167ac54f1ece6c15e64971186f07487c25eaa3e3847 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:47:15,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:47:16,014 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 12:47:16,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:47:16,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:47:16,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:47:16,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:47:16,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:47:16,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:47:16,044 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:47:16,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:47:16,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:47:16,045 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:47:16,045 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 12:47:16,045 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 12:47:16,045 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 12:47:16,046 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 12:47:16,046 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 12:47:16,046 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 12:47:16,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:47:16,046 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 12:47:16,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:47:16,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:47:16,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 12:47:16,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 12:47:16,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 12:47:16,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:47:16,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:47:16,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:47:16,050 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 12:47:16,050 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:47:16,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:47:16,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:47:16,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:47:16,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:47:16,051 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 12:47:16,051 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_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd 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 -> 96e06713cc7b7bcca20fa167ac54f1ece6c15e64971186f07487c25eaa3e3847 [2024-11-13 12:47:16,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:47:16,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:47:16,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:47:16,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:47:16,371 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:47:16,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c Unable to find full path for "g++" [2024-11-13 12:47:18,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:47:18,658 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:47:18,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/sv-benchmarks/c/termination-restricted-15/WhileSingle.c [2024-11-13 12:47:18,671 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/data/61be8913f/7ca3d0df80074dcbbb6554243f261d9e/FLAG013f7cc9b [2024-11-13 12:47:18,719 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/data/61be8913f/7ca3d0df80074dcbbb6554243f261d9e [2024-11-13 12:47:18,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:47:18,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:47:18,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:47:18,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:47:18,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:47:18,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:47:18" (1/1) ... [2024-11-13 12:47:18,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125d69d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:18, skipping insertion in model container [2024-11-13 12:47:18,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:47:18" (1/1) ... [2024-11-13 12:47:18,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:47:18,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:47:18,971 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:47:18,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:47:19,004 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:47:19,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19 WrapperNode [2024-11-13 12:47:19,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:47:19,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:47:19,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:47:19,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:47:19,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,021 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,041 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2024-11-13 12:47:19,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:47:19,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:47:19,042 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:47:19,042 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:47:19,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,053 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,059 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 12:47:19,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:47:19,070 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:47:19,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:47:19,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:47:19,071 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (1/1) ... [2024-11-13 12:47:19,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:19,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:19,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:19,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 12:47:19,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:47:19,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:47:19,247 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:47:19,249 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:47:19,328 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-13 12:47:19,328 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:47:19,344 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:47:19,344 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:47:19,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:47:19 BoogieIcfgContainer [2024-11-13 12:47:19,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:47:19,347 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 12:47:19,347 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 12:47:19,353 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 12:47:19,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 12:47:19,354 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 12:47:18" (1/3) ... [2024-11-13 12:47:19,355 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41107a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 12:47:19, skipping insertion in model container [2024-11-13 12:47:19,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 12:47:19,355 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:19" (2/3) ... [2024-11-13 12:47:19,356 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@41107a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 12:47:19, skipping insertion in model container [2024-11-13 12:47:19,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 12:47:19,356 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:47:19" (3/3) ... [2024-11-13 12:47:19,357 INFO L333 chiAutomizerObserver]: Analyzing ICFG WhileSingle.c [2024-11-13 12:47:19,442 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 12:47:19,442 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 12:47:19,442 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 12:47:19,442 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 12:47:19,442 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 12:47:19,443 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 12:47:19,443 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 12:47:19,443 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 12:47:19,450 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) [2024-11-13 12:47:19,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 12:47:19,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 12:47:19,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 12:47:19,491 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 12:47:19,491 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 12:47:19,491 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 12:47:19,495 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) [2024-11-13 12:47:19,500 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 12:47:19,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 12:47:19,500 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 12:47:19,500 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 12:47:19,500 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 12:47:19,511 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L10-2true [2024-11-13 12:47:19,517 INFO L747 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 < 10); 5#L10true assume 3 != main_~i~0#1;main_~i~0#1 := 1 + main_~i~0#1; 3#L10-2true [2024-11-13 12:47:19,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:19,535 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 12:47:19,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:19,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478088994] [2024-11-13 12:47:19,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:19,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:19,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:47:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:19,674 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:47:19,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2024-11-13 12:47:19,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:19,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337029090] [2024-11-13 12:47:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:19,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:19,692 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:47:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:19,698 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:47:19,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2024-11-13 12:47:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:19,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787896816] [2024-11-13 12:47:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:19,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:19,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:47:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:19,728 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:47:19,842 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 12:47:19,843 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 12:47:19,843 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 12:47:19,843 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 12:47:19,844 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 12:47:19,844 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:19,844 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 12:47:19,844 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 12:47:19,845 INFO L132 ssoRankerPreferences]: Filename of dumped script: WhileSingle.c_Iteration1_Loop [2024-11-13 12:47:19,845 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 12:47:19,845 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 12:47:19,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 12:47:19,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 12:47:19,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 12:47:20,068 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 12:47:20,068 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 12:47:20,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 12:47:20,078 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 12:47:20,078 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 12:47:20,111 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 12:47:20,112 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 12:47:20,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 12:47:20,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 12:47:20,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 12:47:20,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 12:47:20,176 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 12:47:20,176 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-13 12:47:20,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 12:47:20,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,193 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 12:47:20,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 12:47:20,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 12:47:20,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 12:47:20,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 12:47:20,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 12:47:20,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 12:47:20,288 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 12:47:20,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-13 12:47:20,291 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 12:47:20,291 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 12:47:20,292 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 12:47:20,292 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 12:47:20,292 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 12:47:20,292 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,292 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 12:47:20,292 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 12:47:20,292 INFO L132 ssoRankerPreferences]: Filename of dumped script: WhileSingle.c_Iteration1_Loop [2024-11-13 12:47:20,292 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 12:47:20,292 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 12:47:20,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 12:47:20,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 12:47:20,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 12:47:20,434 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 12:47:20,439 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 12:47:20,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 12:47:20,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 12:47:20,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 12:47:20,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 12:47:20,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 12:47:20,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 12:47:20,484 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 12:47:20,484 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 12:47:20,495 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 12:47:20,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-13 12:47:20,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 12:47:20,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 12:47:20,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 12:47:20,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 12:47:20,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 12:47:20,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 12:47:20,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 12:47:20,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 12:47:20,559 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 12:47:20,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 12:47:20,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 12:47:20,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 12:47:20,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 12:47:20,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 12:47:20,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 12:47:20,609 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2024-11-13 12:47:20,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 12:47:20,612 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2024-11-13 12:47:20,612 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 12:47:20,620 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 12:47:20,625 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 12:47:20,628 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 12:47:20,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 12:47:20,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:20,634 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:20,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 12:47:20,638 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 12:47:20,639 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 12:47:20,639 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 12:47:20,639 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2024-11-13 12:47:20,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 12:47:20,658 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 12:47:20,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:20,708 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:47:20,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:20,726 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:47:20,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:20,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 12:47:20,837 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 12:47:20,839 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-13 12:47:20,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 17 states and 24 transitions. Complement of second has 6 states. [2024-11-13 12:47:20,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-13 12:47:20,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-13 12:47:20,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-13 12:47:20,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-13 12:47:20,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 12:47:20,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-13 12:47:20,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 12:47:20,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-13 12:47:20,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 12:47:20,923 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2024-11-13 12:47:20,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 12:47:20,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 9 states and 12 transitions. [2024-11-13 12:47:20,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-13 12:47:20,933 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-13 12:47:20,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-11-13 12:47:20,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 12:47:20,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-11-13 12:47:20,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-11-13 12:47:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-11-13 12:47:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2024-11-13 12:47:20,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-13 12:47:20,967 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 12:47:20,968 INFO L424 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 12:47:20,968 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 12:47:20,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-11-13 12:47:20,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 12:47:20,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 12:47:20,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 12:47:20,970 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 12:47:20,970 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 12:47:20,970 INFO L745 eck$LassoCheckResult]: Stem: 66#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 67#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 68#L10-2 assume !!(main_~i~0#1 < 10); 62#L10 [2024-11-13 12:47:20,971 INFO L747 eck$LassoCheckResult]: Loop: 62#L10 assume !(3 != main_~i~0#1); 61#L10-2 assume !!(main_~i~0#1 < 10); 62#L10 [2024-11-13 12:47:20,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:20,975 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 12:47:20,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:20,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702995209] [2024-11-13 12:47:20,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:20,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:20,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:47:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:20,988 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:47:20,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:20,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2024-11-13 12:47:20,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:20,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739073967] [2024-11-13 12:47:20,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:20,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:20,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:47:21,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:21,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:47:21,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash 28698818, now seen corresponding path program 1 times [2024-11-13 12:47:21,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:21,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234991565] [2024-11-13 12:47:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:21,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:21,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:47:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:21,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:47:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:21,061 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:47:21,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:47:21,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 12:47:21 BoogieIcfgContainer [2024-11-13 12:47:21,088 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 12:47:21,089 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:47:21,089 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:47:21,090 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:47:21,090 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:47:19" (3/4) ... [2024-11-13 12:47:21,093 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 12:47:21,130 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:47:21,130 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:47:21,131 INFO L158 Benchmark]: Toolchain (without parser) took 2403.10ms. Allocated memory is still 117.4MB. Free memory was 95.3MB in the beginning and 79.5MB in the end (delta: 15.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-13 12:47:21,131 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:21,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.70ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 85.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:47:21,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.95ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 84.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:21,134 INFO L158 Benchmark]: Boogie Preprocessor took 25.49ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 83.5MB in the end (delta: 933.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:21,135 INFO L158 Benchmark]: RCFGBuilder took 276.76ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 75.2MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:47:21,136 INFO L158 Benchmark]: BuchiAutomizer took 1741.39ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 80.9MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:21,136 INFO L158 Benchmark]: Witness Printer took 40.98ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:47:21,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.70ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 85.4MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.95ms. Allocated memory is still 117.4MB. Free memory was 85.4MB in the beginning and 84.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.49ms. Allocated memory is still 117.4MB. Free memory was 84.4MB in the beginning and 83.5MB in the end (delta: 933.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.76ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 75.2MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1741.39ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 80.9MB in the end (delta: -5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 40.98ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). 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 Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function (((long) -2 * i) + 19) and consists of 4 locations. The remainder module has 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf156 smp91 tf106 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 54ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 10 VAL [i=3] Loop: [L10] COND FALSE !(i != 3) [L9] COND TRUE i < 10 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 10 VAL [i=3] Loop: [L10] COND FALSE !(i != 3) [L9] COND TRUE i < 10 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 12:47:21,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20d43439-e35f-420a-b72c-38567f504dc7/bin/uautomizer-verify-qhAvR1uOyd/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)