./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX --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 d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:38:19,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:38:20,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-08 17:38:20,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:38:20,036 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:38:20,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:38:20,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:38:20,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:38:20,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:38:20,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:38:20,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:38:20,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:38:20,078 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:38:20,079 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 17:38:20,079 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 17:38:20,079 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 17:38:20,080 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 17:38:20,080 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 17:38:20,080 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 17:38:20,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:38:20,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 17:38:20,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:38:20,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:38:20,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 17:38:20,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 17:38:20,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 17:38:20,083 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:38:20,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:38:20,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:38:20,084 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 17:38:20,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:38:20,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:38:20,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:38:20,089 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:38:20,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:38:20,090 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 17:38:20,090 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d483d112ebc631f1c14642e780c42909cf25d334478fdf38ba7f61b34b8ee811 [2024-11-08 17:38:20,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:38:20,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:38:20,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:38:20,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:38:20,405 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:38:20,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c Unable to find full path for "g++" [2024-11-08 17:38:22,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:38:22,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:38:22,568 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b.c [2024-11-08 17:38:22,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/data/e53ca388f/7e8c3d56755f4f3589e699c91a935d39/FLAG38737b066 [2024-11-08 17:38:22,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/data/e53ca388f/7e8c3d56755f4f3589e699c91a935d39 [2024-11-08 17:38:22,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:38:22,972 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:38:22,973 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:38:22,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:38:22,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:38:22,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:38:22" (1/1) ... [2024-11-08 17:38:22,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7957c4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:22, skipping insertion in model container [2024-11-08 17:38:22,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:38:22" (1/1) ... [2024-11-08 17:38:22,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:38:23,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:38:23,169 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:38:23,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:38:23,200 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:38:23,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23 WrapperNode [2024-11-08 17:38:23,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:38:23,202 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:38:23,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:38:23,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:38:23,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,214 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,230 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-08 17:38:23,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:38:23,231 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:38:23,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:38:23,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:38:23,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,251 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 17:38:23,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:38:23,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:38:23,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:38:23,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:38:23,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (1/1) ... [2024-11-08 17:38:23,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:23,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:23,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:23,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 17:38:23,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:38:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:38:23,407 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:38:23,409 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:38:23,472 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-08 17:38:23,472 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:38:23,483 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:38:23,484 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:38:23,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:23 BoogieIcfgContainer [2024-11-08 17:38:23,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:38:23,485 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 17:38:23,486 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 17:38:23,490 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 17:38:23,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 17:38:23,492 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 05:38:22" (1/3) ... [2024-11-08 17:38:23,493 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@165cbc87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 05:38:23, skipping insertion in model container [2024-11-08 17:38:23,493 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 17:38:23,493 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:38:23" (2/3) ... [2024-11-08 17:38:23,494 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@165cbc87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 05:38:23, skipping insertion in model container [2024-11-08 17:38:23,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 17:38:23,494 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:23" (3/3) ... [2024-11-08 17:38:23,496 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b.c [2024-11-08 17:38:23,559 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 17:38:23,560 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 17:38:23,560 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 17:38:23,560 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 17:38:23,560 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 17:38:23,560 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 17:38:23,560 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 17:38:23,561 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 17:38:23,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-11-08 17:38:23,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:23,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:38:23,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:38:23,584 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 17:38:23,584 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 17:38:23,585 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 17:38:23,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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) [2024-11-08 17:38:23,586 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:23,586 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:38:23,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:38:23,587 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 17:38:23,587 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 17:38:23,594 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L17true assume main_~M~0#1 > 0; 2#L19-2true [2024-11-08 17:38:23,595 INFO L747 eck$LassoCheckResult]: Loop: 2#L19-2true assume main_~x~0#1 != main_~M~0#1; 5#L18-1true assume !!(main_~x~0#1 != main_~M~0#1); 10#L19true assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0; 2#L19-2true [2024-11-08 17:38:23,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-08 17:38:23,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:23,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241574593] [2024-11-08 17:38:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:23,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:23,712 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:23,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:23,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:23,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:23,754 INFO L85 PathProgramCache]: Analyzing trace with hash 38891, now seen corresponding path program 1 times [2024-11-08 17:38:23,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:23,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82221839] [2024-11-08 17:38:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:23,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:23,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:23,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:23,789 INFO L85 PathProgramCache]: Analyzing trace with hash 889508778, now seen corresponding path program 1 times [2024-11-08 17:38:23,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:23,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582991324] [2024-11-08 17:38:23,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:23,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:23,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:23,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:23,959 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:38:23,959 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:38:23,960 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:38:23,960 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:38:23,960 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 17:38:23,960 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:23,961 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:38:23,961 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:38:23,962 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration1_Lasso [2024-11-08 17:38:23,962 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:38:23,962 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:38:23,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,036 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,146 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:38:24,147 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 17:38:24,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:24,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:24,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:24,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-08 17:38:24,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:38:24,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:24,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-08 17:38:24,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:24,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:24,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:24,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-08 17:38:24,206 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 17:38:24,206 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:24,309 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 17:38:24,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-08 17:38:24,314 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:38:24,314 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:38:24,314 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:38:24,314 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:38:24,314 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 17:38:24,314 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:24,314 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:38:24,315 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:38:24,315 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration1_Lasso [2024-11-08 17:38:24,315 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:38:24,315 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:38:24,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,338 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,356 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,363 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:24,438 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:38:24,444 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 17:38:24,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:24,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:24,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:24,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-08 17:38:24,451 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 [2024-11-08 17:38:24,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:38:24,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:38:24,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:38:24,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:38:24,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 17:38:24,480 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 17:38:24,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 17:38:24,513 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-08 17:38:24,514 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2024-11-08 17:38:24,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:24,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:24,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:24,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-08 17:38:24,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 17:38:24,550 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-11-08 17:38:24,551 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 17:38:24,551 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [1*ULTIMATE.start_main_~M~0#1 >= 0] [2024-11-08 17:38:24,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-08 17:38:24,579 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-08 17:38:24,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:24,649 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:38:24,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:24,671 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:38:24,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:24,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:24,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:24,801 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-11-08 17:38:24,803 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-08 17:38:24,868 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 21 states and 28 transitions. Complement of second has 5 states. [2024-11-08 17:38:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-08 17:38:24,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-11-08 17:38:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-11-08 17:38:24,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 3 letters. [2024-11-08 17:38:24,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:24,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2024-11-08 17:38:24,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:24,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-08 17:38:24,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:24,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2024-11-08 17:38:24,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:24,892 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 12 states and 15 transitions. [2024-11-08 17:38:24,893 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-11-08 17:38:24,893 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-08 17:38:24,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2024-11-08 17:38:24,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 17:38:24,895 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-08 17:38:24,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2024-11-08 17:38:24,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-08 17:38:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 11 states have internal predecessors, (15), 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) [2024-11-08 17:38:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2024-11-08 17:38:24,924 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-08 17:38:24,924 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-11-08 17:38:24,924 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-08 17:38:24,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2024-11-08 17:38:24,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:24,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:38:24,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:38:24,926 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-11-08 17:38:24,926 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 17:38:24,926 INFO L745 eck$LassoCheckResult]: Stem: 89#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 90#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 85#L17 assume main_~M~0#1 > 0; 86#L19-2 assume main_~x~0#1 != main_~M~0#1; 83#L18-1 assume !!(main_~x~0#1 != main_~M~0#1); 87#L19 assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1; 80#L19-2 [2024-11-08 17:38:24,927 INFO L747 eck$LassoCheckResult]: Loop: 80#L19-2 assume main_~x~0#1 != main_~M~0#1; 81#L18-1 assume !!(main_~x~0#1 != main_~M~0#1); 91#L19 assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0; 80#L19-2 [2024-11-08 17:38:24,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:24,927 INFO L85 PathProgramCache]: Analyzing trace with hash 889508780, now seen corresponding path program 1 times [2024-11-08 17:38:24,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:24,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510358988] [2024-11-08 17:38:24,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:24,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:24,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:24,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:24,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:24,951 INFO L85 PathProgramCache]: Analyzing trace with hash 38891, now seen corresponding path program 2 times [2024-11-08 17:38:24,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:24,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897255096] [2024-11-08 17:38:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:24,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:24,960 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:24,971 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:24,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -592142240, now seen corresponding path program 1 times [2024-11-08 17:38:24,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:24,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167287126] [2024-11-08 17:38:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:24,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:24,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:25,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:25,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:38:25,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167287126] [2024-11-08 17:38:25,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167287126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:38:25,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105678707] [2024-11-08 17:38:25,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:25,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:38:25,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:25,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:38:25,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:38:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:25,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:38:25,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:25,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:38:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:25,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105678707] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:38:25,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:38:25,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-08 17:38:25,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099703817] [2024-11-08 17:38:25,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:38:25,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:38:25,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:38:25,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:38:25,244 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:38:25,284 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2024-11-08 17:38:25,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2024-11-08 17:38:25,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:25,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 14 transitions. [2024-11-08 17:38:25,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-08 17:38:25,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2024-11-08 17:38:25,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2024-11-08 17:38:25,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 17:38:25,287 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-11-08 17:38:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2024-11-08 17:38:25,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2024-11-08 17:38:25,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:38:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2024-11-08 17:38:25,289 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2024-11-08 17:38:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:38:25,290 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2024-11-08 17:38:25,290 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-08 17:38:25,291 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2024-11-08 17:38:25,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:25,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:38:25,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:38:25,292 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-08 17:38:25,292 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 17:38:25,292 INFO L745 eck$LassoCheckResult]: Stem: 171#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 172#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 167#L17 assume main_~M~0#1 > 0; 168#L19-2 assume main_~x~0#1 != main_~M~0#1; 164#L18-1 [2024-11-08 17:38:25,293 INFO L747 eck$LassoCheckResult]: Loop: 164#L18-1 assume !!(main_~x~0#1 != main_~M~0#1); 169#L19 assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1; 163#L19-2 assume main_~x~0#1 != main_~M~0#1; 164#L18-1 [2024-11-08 17:38:25,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:25,293 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2024-11-08 17:38:25,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:25,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271359016] [2024-11-08 17:38:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:25,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:25,300 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:25,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:25,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:25,304 INFO L85 PathProgramCache]: Analyzing trace with hash 43843, now seen corresponding path program 1 times [2024-11-08 17:38:25,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:25,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983961293] [2024-11-08 17:38:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:25,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:25,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:25,315 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:25,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:25,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968413, now seen corresponding path program 2 times [2024-11-08 17:38:25,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:25,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489600661] [2024-11-08 17:38:25,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:25,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:25,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:25,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:25,378 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:38:25,379 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:38:25,379 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:38:25,379 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:38:25,379 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 17:38:25,380 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:25,380 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:38:25,380 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:38:25,380 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration3_Loop [2024-11-08 17:38:25,380 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:38:25,380 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:38:25,382 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:25,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:25,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:25,499 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:38:25,499 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 17:38:25,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:25,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:25,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:25,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-08 17:38:25,506 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:38:25,506 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:25,534 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 17:38:25,534 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-08 17:38:25,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-08 17:38:25,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:25,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:25,555 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:25,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-08 17:38:25,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:38:25,558 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:25,577 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 17:38:25,578 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-08 17:38:25,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:25,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:25,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:25,592 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:25,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-08 17:38:25,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:38:25,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:25,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:25,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:25,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:25,621 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:25,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-08 17:38:25,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 17:38:25,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:25,911 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 17:38:25,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:25,915 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:38:25,915 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:38:25,915 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:38:25,915 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:38:25,915 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 17:38:25,917 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:25,917 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:38:25,917 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:38:25,917 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration3_Loop [2024-11-08 17:38:25,917 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:38:25,917 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:38:25,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:25,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:25,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:26,008 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:38:26,008 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 17:38:26,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:26,012 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:26,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-08 17:38:26,016 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 [2024-11-08 17:38:26,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:38:26,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:38:26,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:38:26,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:38:26,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 17:38:26,034 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 17:38:26,039 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 17:38:26,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:26,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:26,060 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:26,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-08 17:38:26,062 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 [2024-11-08 17:38:26,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:38:26,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:38:26,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:38:26,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:38:26,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 17:38:26,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 17:38:26,081 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 17:38:26,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:26,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:26,103 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:26,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-08 17:38:26,105 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 [2024-11-08 17:38:26,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:38:26,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 17:38:26,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:38:26,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:38:26,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:38:26,122 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 17:38:26,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 17:38:26,126 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 17:38:26,132 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-08 17:38:26,132 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 17:38:26,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:26,135 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:26,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-08 17:38:26,140 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 17:38:26,140 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 17:38:26,140 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 17:38:26,141 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0#1, ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~M~0#1 - 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-08 17:38:26,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-08 17:38:26,161 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 17:38:26,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:26,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:38:26,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:26,208 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:38:26,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:26,259 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-08 17:38:26,259 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-08 17:38:26,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 20 states and 22 transitions. Complement of second has 5 states. [2024-11-08 17:38:26,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-08 17:38:26,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-08 17:38:26,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-11-08 17:38:26,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2024-11-08 17:38:26,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:26,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-08 17:38:26,289 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:26,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2024-11-08 17:38:26,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:26,290 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2024-11-08 17:38:26,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:26,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 12 states and 13 transitions. [2024-11-08 17:38:26,291 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-11-08 17:38:26,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-11-08 17:38:26,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2024-11-08 17:38:26,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 17:38:26,292 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-08 17:38:26,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2024-11-08 17:38:26,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2024-11-08 17:38:26,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.1) internal successors, (11), 9 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) [2024-11-08 17:38:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2024-11-08 17:38:26,293 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-08 17:38:26,293 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-08 17:38:26,293 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-08 17:38:26,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2024-11-08 17:38:26,294 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-08 17:38:26,294 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 17:38:26,294 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 17:38:26,294 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-11-08 17:38:26,294 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-08 17:38:26,295 INFO L745 eck$LassoCheckResult]: Stem: 242#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 243#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~M~0#1;havoc main_~x~0#1;havoc main_~M~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~M~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 239#L17 assume main_~M~0#1 > 0; 235#L19-2 assume main_~x~0#1 != main_~M~0#1; 236#L18-1 assume !!(main_~x~0#1 != main_~M~0#1); 241#L19 assume main_~x~0#1 > main_~M~0#1;main_~x~0#1 := 0; 237#L19-2 assume main_~x~0#1 != main_~M~0#1; 238#L18-1 [2024-11-08 17:38:26,295 INFO L747 eck$LassoCheckResult]: Loop: 238#L18-1 assume !!(main_~x~0#1 != main_~M~0#1); 240#L19 assume !(main_~x~0#1 > main_~M~0#1);main_~x~0#1 := 1 + main_~x~0#1; 244#L19-2 assume main_~x~0#1 != main_~M~0#1; 238#L18-1 [2024-11-08 17:38:26,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:26,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968351, now seen corresponding path program 2 times [2024-11-08 17:38:26,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:26,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686726990] [2024-11-08 17:38:26,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:26,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:26,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:26,308 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:26,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash 43843, now seen corresponding path program 2 times [2024-11-08 17:38:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:26,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035860490] [2024-11-08 17:38:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:26,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:26,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:26,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:26,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:26,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1178387227, now seen corresponding path program 2 times [2024-11-08 17:38:26,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:38:26,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930048171] [2024-11-08 17:38:26,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:38:26,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:38:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:26,339 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:38:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:38:26,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:38:26,391 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:38:26,391 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:38:26,392 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:38:26,392 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:38:26,392 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 17:38:26,392 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,392 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:38:26,392 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:38:26,392 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration4_Loop [2024-11-08 17:38:26,392 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:38:26,392 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:38:26,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:26,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:26,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:26,483 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:38:26,483 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 17:38:26,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:26,487 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:26,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-08 17:38:26,490 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 17:38:26,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:26,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-08 17:38:26,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:26,530 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:26,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-08 17:38:26,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 17:38:26,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 17:38:26,910 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 17:38:26,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-08 17:38:26,915 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 17:38:26,916 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 17:38:26,916 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 17:38:26,916 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 17:38:26,916 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 17:38:26,916 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:26,916 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 17:38:26,916 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 17:38:26,916 INFO L132 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b.c_Iteration4_Loop [2024-11-08 17:38:26,916 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 17:38:26,916 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 17:38:26,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:26,930 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:26,933 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 17:38:27,012 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 17:38:27,012 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 17:38:27,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:27,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:27,017 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:27,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-08 17:38:27,020 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 [2024-11-08 17:38:27,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 17:38:27,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 17:38:27,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 17:38:27,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 17:38:27,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 17:38:27,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 17:38:27,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 17:38:27,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 17:38:27,044 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-08 17:38:27,044 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 17:38:27,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 17:38:27,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:38:27,046 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 17:38:27,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-08 17:38:27,049 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 17:38:27,049 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 17:38:27,050 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 17:38:27,050 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~M~0#1) = -1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~M~0#1 Supporting invariants [] [2024-11-08 17:38:27,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-08 17:38:27,070 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 17:38:27,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:27,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:38:27,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:27,123 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:38:27,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:27,184 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-08 17:38:27,185 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-08 17:38:27,202 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 13 states and 14 transitions. Complement of second has 5 states. [2024-11-08 17:38:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-08 17:38:27,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-08 17:38:27,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-08 17:38:27,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-08 17:38:27,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:27,203 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 17:38:27,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-08 17:38:27,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:27,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:38:27,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:27,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-08 17:38:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:27,289 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:38:27,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:27,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:27,353 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-08 17:38:27,353 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-08 17:38:27,373 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 13 states and 14 transitions. Complement of second has 5 states. [2024-11-08 17:38:27,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-08 17:38:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-08 17:38:27,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2024-11-08 17:38:27,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-08 17:38:27,376 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:27,376 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 17:38:27,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:38:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:27,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 17:38:27,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:38:27,423 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:38:27,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:38:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:38:27,471 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-08 17:38:27,471 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-08 17:38:27,507 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 15 states and 16 transitions. Complement of second has 6 states. [2024-11-08 17:38:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-08 17:38:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2024-11-08 17:38:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-08 17:38:27,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2024-11-08 17:38:27,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:27,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2024-11-08 17:38:27,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:27,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2024-11-08 17:38:27,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 17:38:27,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2024-11-08 17:38:27,514 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 17:38:27,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2024-11-08 17:38:27,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-08 17:38:27,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-08 17:38:27,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-08 17:38:27,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 17:38:27,515 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:38:27,515 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:38:27,516 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:38:27,516 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-08 17:38:27,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:38:27,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 17:38:27,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-08 17:38:27,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 05:38:27 BoogieIcfgContainer [2024-11-08 17:38:27,528 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 17:38:27,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:38:27,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:38:27,528 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:38:27,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:38:23" (3/4) ... [2024-11-08 17:38:27,531 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:38:27,532 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:38:27,533 INFO L158 Benchmark]: Toolchain (without parser) took 4561.40ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 115.8MB in the beginning and 141.0MB in the end (delta: -25.2MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2024-11-08 17:38:27,533 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 153.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:38:27,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.63ms. Allocated memory is still 153.1MB. Free memory was 115.8MB in the beginning and 104.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:38:27,537 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.92ms. Allocated memory is still 153.1MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:38:27,537 INFO L158 Benchmark]: Boogie Preprocessor took 29.57ms. Allocated memory is still 153.1MB. Free memory was 103.2MB in the beginning and 101.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:38:27,537 INFO L158 Benchmark]: RCFGBuilder took 223.51ms. Allocated memory is still 153.1MB. Free memory was 101.7MB in the beginning and 92.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 17:38:27,538 INFO L158 Benchmark]: BuchiAutomizer took 4042.16ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 92.8MB in the beginning and 141.0MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:38:27,538 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 188.7MB. Free memory is still 141.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:38:27,540 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 153.1MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.63ms. Allocated memory is still 153.1MB. Free memory was 115.8MB in the beginning and 104.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.92ms. Allocated memory is still 153.1MB. Free memory was 104.3MB in the beginning and 103.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.57ms. Allocated memory is still 153.1MB. Free memory was 103.2MB in the beginning and 101.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 223.51ms. Allocated memory is still 153.1MB. Free memory was 101.7MB in the beginning and 92.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4042.16ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 92.8MB in the beginning and 141.0MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 188.7MB. Free memory is still 141.0MB. 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function (M + ((long) -1 * x)) and consists of 3 locations. One nondeterministic module has affine ranking function (M + ((long) -1 * x)) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 30 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax180 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf95 smp65 dnf100 smp100 tf108 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 105ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-08 17:38:27,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 17:38:27,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f812b95-da58-42ee-b3c0-2ead4e210271/bin/uautomizer-verify-jihMAELWvX/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 Result: TRUE