./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/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_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/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_6270414c-e698-4dde-8067-cffc9da5c21d/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 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:00:31,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:00:31,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 15:00:31,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:00:31,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:00:31,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:00:31,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:00:31,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:00:31,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:00:31,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:00:31,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:00:31,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:00:31,734 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:00:31,734 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:00:31,734 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:00:31,735 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:00:31,735 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:00:31,735 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:00:31,735 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:00:31,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:00:31,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:00:31,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:00:31,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:00:31,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:00:31,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:00:31,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:00:31,736 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:00:31,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:00:31,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:00:31,737 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:00:31,737 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:00:31,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:00:31,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:00:31,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:00:31,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:00:31,738 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:00:31,738 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_6270414c-e698-4dde-8067-cffc9da5c21d/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 -> 7ec1d1d4856d24b14cb09101172e0975902985e260ca74737e781ce301d37cbb [2024-11-13 15:00:32,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:00:32,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:00:32,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:00:32,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:00:32,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:00:32,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c Unable to find full path for "g++" [2024-11-13 15:00:34,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:00:35,055 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:00:35,056 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2024-11-13 15:00:35,065 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/data/de5f4dcd6/746beb14c1684d97ab64692c7e3accb5/FLAG93450e459 [2024-11-13 15:00:35,251 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/data/de5f4dcd6/746beb14c1684d97ab64692c7e3accb5 [2024-11-13 15:00:35,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:00:35,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:00:35,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:00:35,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:00:35,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:00:35,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72630957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35, skipping insertion in model container [2024-11-13 15:00:35,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:00:35,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:00:35,516 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:00:35,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:00:35,551 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:00:35,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35 WrapperNode [2024-11-13 15:00:35,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:00:35,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:00:35,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:00:35,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:00:35,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,588 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2024-11-13 15:00:35,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:00:35,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:00:35,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:00:35,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:00:35,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,611 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 15:00:35,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:00:35,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:00:35,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:00:35,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:00:35,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (1/1) ... [2024-11-13 15:00:35,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:35,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:35,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:35,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:00:35,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:00:35,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:00:35,822 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:00:35,825 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:00:35,904 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-13 15:00:35,907 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:00:35,920 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:00:35,921 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:00:35,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:00:35 BoogieIcfgContainer [2024-11-13 15:00:35,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:00:35,923 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:00:35,923 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:00:35,927 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:00:35,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:00:35,928 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:00:35" (1/3) ... [2024-11-13 15:00:35,930 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e982812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:00:35, skipping insertion in model container [2024-11-13 15:00:35,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:00:35,931 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:00:35" (2/3) ... [2024-11-13 15:00:35,931 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e982812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:00:35, skipping insertion in model container [2024-11-13 15:00:35,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:00:35,933 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:00:35" (3/3) ... [2024-11-13 15:00:35,934 INFO L333 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig1.c [2024-11-13 15:00:36,014 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:00:36,015 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:00:36,015 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:00:36,015 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:00:36,015 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:00:36,016 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:00:36,016 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:00:36,016 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:00:36,022 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 15:00:36,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:00:36,043 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:00:36,043 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:00:36,049 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:00:36,049 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:00:36,050 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:00:36,050 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 15:00:36,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:00:36,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:00:36,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:00:36,052 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 15:00:36,052 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:00:36,061 INFO L745 eck$LassoCheckResult]: Stem: 7#$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_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L18-2true [2024-11-13 15:00:36,061 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 <= 10); 3#L18true assume main_~x~0#1 > 6;main_~x~0#1 := 2 + main_~x~0#1; 6#L18-2true [2024-11-13 15:00:36,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:36,068 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 15:00:36,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:36,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920746777] [2024-11-13 15:00:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:36,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:36,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:00:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:36,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:00:36,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2024-11-13 15:00:36,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:36,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320003879] [2024-11-13 15:00:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:36,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:36,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:00:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:36,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:00:36,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:36,230 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2024-11-13 15:00:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079408869] [2024-11-13 15:00:36,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:36,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:36,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:00:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:36,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:00:36,369 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:00:36,370 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:00:36,370 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:00:36,370 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:00:36,371 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 15:00:36,371 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,371 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:00:36,372 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:00:36,372 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1.c_Iteration1_Loop [2024-11-13 15:00:36,372 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:00:36,372 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:00:36,391 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:00:36,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:00:36,421 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:00:36,551 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:00:36,551 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 15:00:36,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:36,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:36,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 15:00:36,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:00:36,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:00:36,597 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:00:36,597 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 15:00:36,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 15:00:36,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:36,626 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:36,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 15:00:36,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:00:36,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:00:36,664 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 15:00:36,664 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 15:00:36,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 15:00:36,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:36,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:36,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 15:00:36,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 15:00:36,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:00:36,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 15:00:36,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:36,723 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:36,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 15:00:36,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 15:00:36,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 15:00:36,748 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 15:00:36,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:36,766 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 15:00:36,766 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 15:00:36,766 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 15:00:36,766 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 15:00:36,767 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 15:00:36,767 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,767 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 15:00:36,767 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 15:00:36,767 INFO L132 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1.c_Iteration1_Loop [2024-11-13 15:00:36,767 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 15:00:36,767 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 15:00:36,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:00:36,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:00:36,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 15:00:36,893 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 15:00:36,902 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 15:00:36,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:36,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:36,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 15:00:36,913 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 15:00:36,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:00:36,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:00:36,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:00:36,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:00:36,941 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:00:36,941 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:00:36,949 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:00:36,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 15:00:36,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:36,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:36,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:36,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 15:00:36,984 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 15:00:37,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:00:37,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:00:37,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:00:37,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:00:37,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 15:00:37,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 15:00:37,016 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 15:00:37,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 15:00:37,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:37,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:37,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:37,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 15:00:37,047 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 15:00:37,065 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 15:00:37,065 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 15:00:37,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 15:00:37,066 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 15:00:37,066 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 15:00:37,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 15:00:37,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 15:00:37,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 15:00:37,090 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 15:00:37,097 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 15:00:37,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:00:37,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:00:37,107 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:00:37,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 15:00:37,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 15:00:37,110 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 15:00:37,110 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 15:00:37,111 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 11 Supporting invariants [] [2024-11-13 15:00:37,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-13 15:00:37,138 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 15:00:37,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:37,192 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:00:37,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:37,212 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:00:37,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:00:37,250 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 15:00:37,290 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 15:00:37,294 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 15:00:37,387 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 15:00:37,393 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 15:00:37,401 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 15:00:37,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-13 15:00:37,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 15:00:37,414 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2024-11-13 15:00:37,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:00:37,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2024-11-13 15:00:37,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:00:37,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-13 15:00:37,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 15:00:37,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2024-11-13 15:00:37,422 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:00:37,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 9 states and 12 transitions. [2024-11-13 15:00:37,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-11-13 15:00:37,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-11-13 15:00:37,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2024-11-13 15:00:37,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 15:00:37,431 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2024-11-13 15:00:37,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2024-11-13 15:00:37,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-11-13 15:00:37,456 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 15:00:37,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-11-13 15:00:37,457 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 15:00:37,458 INFO L424 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-11-13 15:00:37,458 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 15:00:37,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-11-13 15:00:37,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-13 15:00:37,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:00:37,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:00:37,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 15:00:37,459 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:00:37,459 INFO L745 eck$LassoCheckResult]: Stem: 66#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 67#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 68#L18-2 assume !!(main_~x~0#1 <= 10); 61#L18 [2024-11-13 15:00:37,460 INFO L747 eck$LassoCheckResult]: Loop: 61#L18 assume !(main_~x~0#1 > 6); 62#L18-2 assume !!(main_~x~0#1 <= 10); 61#L18 [2024-11-13 15:00:37,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:37,460 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 15:00:37,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:37,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970436133] [2024-11-13 15:00:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:37,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:00:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,469 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:00:37,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:37,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2024-11-13 15:00:37,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:37,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451222470] [2024-11-13 15:00:37,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:37,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:00:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:00:37,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:37,481 INFO L85 PathProgramCache]: Analyzing trace with hash 28698818, now seen corresponding path program 1 times [2024-11-13 15:00:37,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:00:37,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348125841] [2024-11-13 15:00:37,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:37,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:00:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:00:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:00:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:00:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:00:37,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:00:37 BoogieIcfgContainer [2024-11-13 15:00:37,554 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:00:37,555 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:00:37,555 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:00:37,555 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:00:37,556 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:00:35" (3/4) ... [2024-11-13 15:00:37,558 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 15:00:37,587 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:00:37,587 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:00:37,589 INFO L158 Benchmark]: Toolchain (without parser) took 2332.20ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.3MB in the end (delta: 11.3MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-13 15:00:37,589 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:00:37,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.82ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 82.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:00:37,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.95ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.6MB in the end (delta: 865.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:00:37,590 INFO L158 Benchmark]: Boogie Preprocessor took 32.54ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.7MB in the end (delta: 889.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:00:37,591 INFO L158 Benchmark]: RCFGBuilder took 297.87ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 72.7MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:00:37,591 INFO L158 Benchmark]: BuchiAutomizer took 1631.55ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 83.3MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:00:37,592 INFO L158 Benchmark]: Witness Printer took 32.46ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:00:37,594 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 83.9MB. Free memory is still 41.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.82ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 82.5MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.95ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.6MB in the end (delta: 865.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.54ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.7MB in the end (delta: 889.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 297.87ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 72.7MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1631.55ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 83.3MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 32.46ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. 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) -1 * x) + 11) and consists of 4 locations. The remainder module has 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms 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: 18]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 VAL [x=0] Loop: [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 VAL [x=0] Loop: [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 15:00:37,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6270414c-e698-4dde-8067-cffc9da5c21d/bin/uautomizer-verify-qhAvR1uOyd/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)