./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.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_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/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_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/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_252ccbfd-c16e-433e-8b83-3d4bb4598b88/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 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:02:00,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:02:00,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-08 19:02:00,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:02:00,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:02:00,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:02:00,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:02:00,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:02:00,503 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:02:00,503 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:02:00,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:02:00,505 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:02:00,505 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:02:00,507 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-08 19:02:00,508 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-08 19:02:00,508 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-08 19:02:00,508 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-08 19:02:00,509 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-08 19:02:00,509 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-08 19:02:00,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:02:00,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-08 19:02:00,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:02:00,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:02:00,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-08 19:02:00,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-08 19:02:00,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-08 19:02:00,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:02:00,530 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:02:00,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:02:00,530 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-08 19:02:00,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:02:00,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:02:00,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:02:00,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:02:00,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:02:00,533 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-08 19:02:00,533 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_252ccbfd-c16e-433e-8b83-3d4bb4598b88/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2024-11-08 19:02:00,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:02:00,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:02:00,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:02:00,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:02:00,852 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:02:00,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c Unable to find full path for "g++" [2024-11-08 19:02:03,034 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:02:03,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:02:03,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-08 19:02:03,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/data/76fd47002/82f117b597ba4c4e9644b3fa8b9a3943/FLAGe58c9dd43 [2024-11-08 19:02:03,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/data/76fd47002/82f117b597ba4c4e9644b3fa8b9a3943 [2024-11-08 19:02:03,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:02:03,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:02:03,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:02:03,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:02:03,630 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:02:03,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8e2055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03, skipping insertion in model container [2024-11-08 19:02:03,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:02:03,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:02:03,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:02:03,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:02:03,859 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:02:03,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03 WrapperNode [2024-11-08 19:02:03,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:02:03,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:02:03,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:02:03,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:02:03,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,888 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-08 19:02:03,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:02:03,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:02:03,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:02:03,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:02:03,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,902 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,907 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 19:02:03,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:02:03,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:02:03,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:02:03,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:02:03,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (1/1) ... [2024-11-08 19:02:03,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:03,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:03,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:03,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-08 19:02:03,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:02:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:02:04,082 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:02:04,084 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:02:04,198 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-08 19:02:04,198 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:02:04,217 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:02:04,217 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:02:04,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:02:04 BoogieIcfgContainer [2024-11-08 19:02:04,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:02:04,219 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-08 19:02:04,219 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-08 19:02:04,224 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-08 19:02:04,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 19:02:04,225 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.11 07:02:03" (1/3) ... [2024-11-08 19:02:04,226 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50f27623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 07:02:04, skipping insertion in model container [2024-11-08 19:02:04,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 19:02:04,226 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:02:03" (2/3) ... [2024-11-08 19:02:04,227 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50f27623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.11 07:02:04, skipping insertion in model container [2024-11-08 19:02:04,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-08 19:02:04,227 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:02:04" (3/3) ... [2024-11-08 19:02:04,228 INFO L332 chiAutomizerObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2024-11-08 19:02:04,284 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-08 19:02:04,285 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-08 19:02:04,285 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-08 19:02:04,285 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-08 19:02:04,285 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-08 19:02:04,285 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-08 19:02:04,286 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-08 19:02:04,286 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-08 19:02:04,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 19:02:04,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:04,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 19:02:04,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 19:02:04,318 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 19:02:04,318 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-08 19:02:04,318 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-08 19:02:04,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 19:02:04,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:04,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 19:02:04,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 19:02:04,321 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-08 19:02:04,321 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-08 19:02:04,333 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 5#L21true assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 7#L22-3true [2024-11-08 19:02:04,333 INFO L747 eck$LassoCheckResult]: Loop: 7#L22-3true assume main_~y~0#1 >= 1; 3#L22-1true assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 9#L24-3true assume !(main_~y~0#1 < main_~z~0#1); 11#L24-4true main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 7#L22-3true [2024-11-08 19:02:04,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:04,340 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-11-08 19:02:04,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:04,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101069512] [2024-11-08 19:02:04,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:04,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:04,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:04,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:04,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:04,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1205896, now seen corresponding path program 1 times [2024-11-08 19:02:04,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:04,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230977670] [2024-11-08 19:02:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:04,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:04,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:04,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:04,479 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:04,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:04,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968617, now seen corresponding path program 1 times [2024-11-08 19:02:04,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:04,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041029506] [2024-11-08 19:02:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:04,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:04,504 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:04,512 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:04,598 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:04,599 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:04,599 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:04,599 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:04,599 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 19:02:04,599 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:04,600 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:04,600 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:04,600 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-11-08 19:02:04,600 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:04,601 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:04,626 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:04,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:04,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:04,769 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:04,770 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 19:02:04,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:04,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:04,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:04,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-08 19:02:04,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:04,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:04,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-08 19:02:04,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:04,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:04,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:04,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-08 19:02:04,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 19:02:04,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:05,070 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 19:02:05,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-08 19:02:05,077 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:05,077 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:05,078 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:05,078 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:05,078 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 19:02:05,079 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:05,079 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:05,079 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:05,079 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration1_Loop [2024-11-08 19:02:05,079 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:05,080 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:05,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:05,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:05,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:05,199 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:05,204 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 19:02:05,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:05,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:05,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:05,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-08 19:02:05,212 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 19:02:05,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:05,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:05,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:05,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:05,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:05,234 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 19:02:05,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:05,244 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:05,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-08 19:02:05,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:05,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:05,268 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:05,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-08 19:02:05,270 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 19:02:05,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:05,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:05,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:05,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:05,287 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 19:02:05,287 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 19:02:05,293 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:05,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:05,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:05,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:05,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:05,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-08 19:02:05,316 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 19:02:05,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:05,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:05,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:05,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:05,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 19:02:05,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 19:02:05,353 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:05,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:05,375 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-08 19:02:05,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:05,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:05,377 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:05,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-08 19:02:05,380 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 19:02:05,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:05,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:05,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:05,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:05,394 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-08 19:02:05,396 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-08 19:02:05,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:05,415 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 19:02:05,427 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2024-11-08 19:02:05,427 INFO L444 ModelExtractionUtils]: 4 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-08 19:02:05,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:05,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:05,441 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:05,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-08 19:02:05,443 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 19:02:05,444 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 19:02:05,444 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 19:02:05,444 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-08 19:02:05,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:05,461 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 19:02:05,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-08 19:02:05,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-08 19:02:05,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:05,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:05,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:05,526 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:02:05,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:05,939 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 19:02:05,974 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 19:02:05,977 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 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 19:02:06,080 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 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 31 states and 40 transitions. Complement of second has 8 states. [2024-11-08 19:02:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-08 19:02:06,089 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 19:02:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2024-11-08 19:02:06,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-08 19:02:06,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:06,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-08 19:02:06,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:06,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-08 19:02:06,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:06,095 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 40 transitions. [2024-11-08 19:02:06,098 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:06,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 17 states and 22 transitions. [2024-11-08 19:02:06,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-08 19:02:06,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-08 19:02:06,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-11-08 19:02:06,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 19:02:06,106 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-08 19:02:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-11-08 19:02:06,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-08 19:02:06,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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 19:02:06,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2024-11-08 19:02:06,132 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-08 19:02:06,133 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-08 19:02:06,133 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-08 19:02:06,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2024-11-08 19:02:06,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:06,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 19:02:06,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 19:02:06,136 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:02:06,137 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-08 19:02:06,138 INFO L745 eck$LassoCheckResult]: Stem: 101#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 102#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 99#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 100#L22-3 assume main_~y~0#1 >= 1; 95#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 96#L24-3 assume main_~y~0#1 < main_~z~0#1; 106#L24-1 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 109#L24-3 [2024-11-08 19:02:06,138 INFO L747 eck$LassoCheckResult]: Loop: 109#L24-3 assume main_~y~0#1 < main_~z~0#1; 111#L24-1 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 109#L24-3 [2024-11-08 19:02:06,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:06,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1804968396, now seen corresponding path program 1 times [2024-11-08 19:02:06,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:06,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651964253] [2024-11-08 19:02:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:06,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:06,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:06,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1542, now seen corresponding path program 1 times [2024-11-08 19:02:06,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:06,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272823372] [2024-11-08 19:02:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:06,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:06,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:06,186 INFO L85 PathProgramCache]: Analyzing trace with hash -592158447, now seen corresponding path program 2 times [2024-11-08 19:02:06,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:06,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754635204] [2024-11-08 19:02:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:06,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:06,254 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:06,254 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:06,255 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:06,255 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:06,255 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 19:02:06,255 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,255 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:06,255 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:06,256 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-11-08 19:02:06,256 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:06,256 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:06,258 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,331 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:06,332 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 19:02:06,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:06,334 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:06,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-08 19:02:06,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:06,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:06,371 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 19:02:06,371 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 19:02:06,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-08 19:02:06,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:06,400 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:06,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-08 19:02:06,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:06,405 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:06,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:06,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:06,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:06,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-08 19:02:06,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 19:02:06,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:06,613 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 19:02:06,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:06,617 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:06,617 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:06,617 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:06,618 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:06,618 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 19:02:06,618 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,618 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:06,618 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:06,618 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration2_Loop [2024-11-08 19:02:06,618 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:06,618 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:06,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,633 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,636 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,696 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:06,696 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 19:02:06,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:06,698 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:06,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-08 19:02:06,702 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 19:02:06,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:06,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:06,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:06,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:06,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:06,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 19:02:06,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:06,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 19:02:06,729 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-08 19:02:06,729 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 19:02:06,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:06,732 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:06,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-08 19:02:06,735 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 19:02:06,736 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 19:02:06,736 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 19:02:06,736 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~z~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-08 19:02:06,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:06,755 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 19:02:06,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:06,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:06,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:06,805 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:02:06,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:06,822 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 19:02:06,822 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-08 19:02:06,822 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 19:02:06,847 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Result 28 states and 40 transitions. Complement of second has 8 states. [2024-11-08 19:02:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-08 19:02:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 19:02:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2024-11-08 19:02:06,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-08 19:02:06,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:06,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 9 letters. Loop has 2 letters. [2024-11-08 19:02:06,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:06,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-08 19:02:06,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:06,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 40 transitions. [2024-11-08 19:02:06,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:06,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 28 transitions. [2024-11-08 19:02:06,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-08 19:02:06,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-08 19:02:06,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2024-11-08 19:02:06,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 19:02:06,853 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 28 transitions. [2024-11-08 19:02:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2024-11-08 19:02:06,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-11-08 19:02:06,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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 19:02:06,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2024-11-08 19:02:06,855 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-08 19:02:06,855 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-11-08 19:02:06,855 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-08 19:02:06,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2024-11-08 19:02:06,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:06,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 19:02:06,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 19:02:06,857 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:02:06,857 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-08 19:02:06,857 INFO L745 eck$LassoCheckResult]: Stem: 197#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 198#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 195#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 196#L22-3 assume main_~y~0#1 >= 1; 191#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 192#L24-3 assume main_~y~0#1 < main_~z~0#1; 207#L24-1 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 210#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 203#L24-4 [2024-11-08 19:02:06,857 INFO L747 eck$LassoCheckResult]: Loop: 203#L24-4 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 199#L22-3 assume main_~y~0#1 >= 1; 200#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 204#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 203#L24-4 [2024-11-08 19:02:06,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash 119445453, now seen corresponding path program 1 times [2024-11-08 19:02:06,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:06,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200313639] [2024-11-08 19:02:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,865 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:06,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:06,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1736986, now seen corresponding path program 2 times [2024-11-08 19:02:06,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:06,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670701895] [2024-11-08 19:02:06,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:06,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:06,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:06,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1555016986, now seen corresponding path program 1 times [2024-11-08 19:02:06,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:06,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89463189] [2024-11-08 19:02:06,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:06,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:06,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:06,934 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:06,934 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:06,934 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:06,934 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:06,934 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 19:02:06,934 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:06,934 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:06,934 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:06,934 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-11-08 19:02:06,934 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:06,935 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:06,936 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:06,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:07,014 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:07,014 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 19:02:07,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:07,016 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:07,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-08 19:02:07,021 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:07,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:07,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:07,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:07,057 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:07,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-08 19:02:07,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 19:02:07,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:07,407 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 19:02:07,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:07,411 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:07,411 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:07,411 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:07,411 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:07,411 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 19:02:07,411 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,411 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:07,412 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:07,412 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration3_Loop [2024-11-08 19:02:07,412 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:07,412 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:07,413 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:07,424 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:07,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:07,479 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:07,479 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 19:02:07,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:07,481 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:07,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-08 19:02:07,484 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 19:02:07,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:07,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:07,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:07,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:07,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:07,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 19:02:07,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:07,505 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:07,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:07,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:07,525 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:07,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-08 19:02:07,527 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 19:02:07,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:07,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:07,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:07,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:07,541 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 19:02:07,541 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 19:02:07,545 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:07,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-08 19:02:07,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:07,567 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:07,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-08 19:02:07,569 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 19:02:07,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:07,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:07,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:07,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:07,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 19:02:07,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 19:02:07,590 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:07,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-08 19:02:07,608 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-08 19:02:07,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:07,610 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:07,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-08 19:02:07,615 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 19:02:07,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:07,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:07,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:07,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:07,630 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-08 19:02:07,633 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-08 19:02:07,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:07,638 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 19:02:07,647 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-08 19:02:07,648 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-08 19:02:07,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:07,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:07,650 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:07,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-08 19:02:07,653 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 19:02:07,653 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 19:02:07,653 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 19:02:07,653 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~x~0#1 + 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-08 19:02:07,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-08 19:02:07,673 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 19:02:07,675 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-08 19:02:07,676 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-08 19:02:07,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:07,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:07,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:07,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:07,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:07,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-08 19:02:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:07,785 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:02:07,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:08,016 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 19:02:08,016 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-08 19:02:08,017 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 19:02:08,079 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 27 transitions. cyclomatic complexity: 10. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) Result 50 states and 67 transitions. Complement of second has 9 states. [2024-11-08 19:02:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-08 19:02:08,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 19:02:08,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2024-11-08 19:02:08,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 4 letters. [2024-11-08 19:02:08,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:08,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-08 19:02:08,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:08,082 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 8 letters. [2024-11-08 19:02:08,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:08,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 67 transitions. [2024-11-08 19:02:08,084 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:08,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 39 states and 52 transitions. [2024-11-08 19:02:08,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-11-08 19:02:08,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-08 19:02:08,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 52 transitions. [2024-11-08 19:02:08,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 19:02:08,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 39 states and 52 transitions. [2024-11-08 19:02:08,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 52 transitions. [2024-11-08 19:02:08,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2024-11-08 19:02:08,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 37 states have internal predecessors, (51), 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 19:02:08,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 51 transitions. [2024-11-08 19:02:08,090 INFO L240 hiAutomatonCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-08 19:02:08,090 INFO L425 stractBuchiCegarLoop]: Abstraction has 38 states and 51 transitions. [2024-11-08 19:02:08,090 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-08 19:02:08,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 51 transitions. [2024-11-08 19:02:08,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-08 19:02:08,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 19:02:08,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 19:02:08,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 19:02:08,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-08 19:02:08,092 INFO L745 eck$LassoCheckResult]: Stem: 334#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 335#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 332#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 333#L22-3 assume main_~y~0#1 >= 1; 336#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 364#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 341#L24-4 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 338#L22-3 assume main_~y~0#1 >= 1; 328#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 329#L24-3 assume main_~y~0#1 < main_~z~0#1; 339#L24-1 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 342#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 345#L24-4 [2024-11-08 19:02:08,093 INFO L747 eck$LassoCheckResult]: Loop: 345#L24-4 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 346#L22-3 assume main_~y~0#1 >= 1; 357#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 351#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 345#L24-4 [2024-11-08 19:02:08,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash 461903398, now seen corresponding path program 2 times [2024-11-08 19:02:08,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:08,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46078042] [2024-11-08 19:02:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:08,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:08,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:08,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:08,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1736986, now seen corresponding path program 3 times [2024-11-08 19:02:08,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:08,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264222407] [2024-11-08 19:02:08,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:08,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:08,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:08,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:08,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:08,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:08,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1336999103, now seen corresponding path program 3 times [2024-11-08 19:02:08,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:08,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771806943] [2024-11-08 19:02:08,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:08,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:02:08,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:02:08,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771806943] [2024-11-08 19:02:08,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771806943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:02:08,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142552234] [2024-11-08 19:02:08,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:02:08,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:02:08,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:08,345 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:02:08,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 19:02:08,398 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 19:02:08,399 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:02:08,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:02:08,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:08,475 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:02:08,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:02:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:02:08,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142552234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:02:08,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:02:08,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-08 19:02:08,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672922474] [2024-11-08 19:02:08,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:02:08,622 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:08,622 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:08,622 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:08,622 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:08,622 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 19:02:08,623 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:08,623 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:08,623 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:08,623 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-11-08 19:02:08,623 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:08,623 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:08,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:08,629 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:08,639 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:08,688 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:08,688 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 19:02:08,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:08,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:08,691 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:08,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-08 19:02:08,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:08,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:08,718 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 19:02:08,718 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-08 19:02:08,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:08,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:08,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:08,739 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:08,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-08 19:02:08,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:08,743 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:08,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:08,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:08,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:08,780 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:08,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-08 19:02:08,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 19:02:08,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:09,042 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 19:02:09,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:09,046 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:09,046 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:09,046 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:09,046 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:09,046 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 19:02:09,046 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:09,046 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:09,046 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:09,046 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration4_Loop [2024-11-08 19:02:09,046 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:09,046 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:09,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:09,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:09,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:09,111 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:09,111 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 19:02:09,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:09,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:09,113 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:09,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-08 19:02:09,118 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 19:02:09,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:09,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:09,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:09,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:09,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:09,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 19:02:09,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:09,139 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:09,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:09,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:09,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:09,159 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:09,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-08 19:02:09,163 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 19:02:09,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:09,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:09,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:09,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:09,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 19:02:09,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 19:02:09,182 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:09,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:09,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:09,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:09,201 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:09,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-08 19:02:09,204 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 19:02:09,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:09,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:09,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:09,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:09,220 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 19:02:09,220 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 19:02:09,225 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:09,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:09,243 INFO L451 LassoAnalysis]: Using template '2-nested'. [2024-11-08 19:02:09,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:09,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:09,245 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:09,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-08 19:02:09,247 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 19:02:09,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:09,263 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:09,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:09,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:09,263 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2024-11-08 19:02:09,264 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2024-11-08 19:02:09,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:09,270 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 19:02:09,279 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-11-08 19:02:09,279 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 2 variables to zero. [2024-11-08 19:02:09,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:09,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:09,281 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:09,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-08 19:02:09,283 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 19:02:09,284 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 19:02:09,284 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 19:02:09,284 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~x~0#1 f1 = 1*ULTIMATE.start_main_~y~0#1 + 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-11-08 19:02:09,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-08 19:02:09,303 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 19:02:09,305 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-08 19:02:09,306 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression [2024-11-08 19:02:09,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:09,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:09,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:09,357 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:02:09,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:09,601 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 19:02:09,601 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-08 19:02:09,602 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:09,669 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 52 states and 69 transitions. Complement of second has 9 states. [2024-11-08 19:02:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-08 19:02:09,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:09,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2024-11-08 19:02:09,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-08 19:02:09,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:09,672 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 19:02:09,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:09,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:09,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:09,743 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:02:09,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:09,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-08 19:02:09,930 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 19:02:09,931 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-08 19:02:09,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:09,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 68 states and 86 transitions. Complement of second has 9 states. [2024-11-08 19:02:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-08 19:02:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2024-11-08 19:02:09,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-08 19:02:09,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:09,999 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 19:02:10,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:10,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:10,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:10,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:10,046 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:02:10,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:10,231 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 19:02:10,231 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 4 loop predicates [2024-11-08 19:02:10,232 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 19 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:10,291 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 51 transitions. cyclomatic complexity: 19. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 68 states and 89 transitions. Complement of second has 10 states. [2024-11-08 19:02:10,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-08 19:02:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2024-11-08 19:02:10,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-08 19:02:10,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:10,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2024-11-08 19:02:10,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:10,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 12 letters. Loop has 8 letters. [2024-11-08 19:02:10,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:10,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 89 transitions. [2024-11-08 19:02:10,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-08 19:02:10,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 49 states and 64 transitions. [2024-11-08 19:02:10,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-08 19:02:10,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-11-08 19:02:10,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 64 transitions. [2024-11-08 19:02:10,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 19:02:10,298 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 64 transitions. [2024-11-08 19:02:10,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 64 transitions. [2024-11-08 19:02:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 27. [2024-11-08 19:02:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 26 states have internal predecessors, (36), 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 19:02:10,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2024-11-08 19:02:10,300 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2024-11-08 19:02:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:02:10,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:02:10,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:02:10,304 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 12 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 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 19:02:10,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:02:10,418 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2024-11-08 19:02:10,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 47 transitions. [2024-11-08 19:02:10,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-08 19:02:10,419 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 35 states and 43 transitions. [2024-11-08 19:02:10,419 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-08 19:02:10,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-08 19:02:10,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 43 transitions. [2024-11-08 19:02:10,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 19:02:10,420 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 43 transitions. [2024-11-08 19:02:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 43 transitions. [2024-11-08 19:02:10,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2024-11-08 19:02:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 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 19:02:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2024-11-08 19:02:10,423 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 39 transitions. [2024-11-08 19:02:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:02:10,423 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 39 transitions. [2024-11-08 19:02:10,424 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-08 19:02:10,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 39 transitions. [2024-11-08 19:02:10,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-08 19:02:10,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 19:02:10,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 19:02:10,425 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 19:02:10,425 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-08 19:02:10,425 INFO L745 eck$LassoCheckResult]: Stem: 936#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 937#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 934#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 935#L22-3 assume main_~y~0#1 >= 1; 930#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 931#L24-3 assume main_~y~0#1 < main_~z~0#1; 954#L24-1 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 948#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 946#L24-4 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 938#L22-3 assume main_~y~0#1 >= 1; 939#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 960#L24-3 assume main_~y~0#1 < main_~z~0#1; 940#L24-1 [2024-11-08 19:02:10,426 INFO L747 eck$LassoCheckResult]: Loop: 940#L24-1 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 941#L24-3 assume main_~y~0#1 < main_~z~0#1; 940#L24-1 [2024-11-08 19:02:10,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1555016993, now seen corresponding path program 4 times [2024-11-08 19:02:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:10,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961862647] [2024-11-08 19:02:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:10,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:10,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:10,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:10,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1692, now seen corresponding path program 2 times [2024-11-08 19:02:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:10,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577939389] [2024-11-08 19:02:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:10,442 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:10,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:10,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash 277289466, now seen corresponding path program 5 times [2024-11-08 19:02:10,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:10,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145017334] [2024-11-08 19:02:10,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:10,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:10,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:10,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:10,484 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:10,484 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:10,484 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:10,484 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:10,484 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 19:02:10,484 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:10,484 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:10,485 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:10,485 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-11-08 19:02:10,485 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:10,485 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:10,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,489 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,495 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,545 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:10,545 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 19:02:10,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:10,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:10,547 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:10,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-08 19:02:10,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:10,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:10,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-08 19:02:10,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:10,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:10,585 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:10,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-08 19:02:10,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 19:02:10,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:10,620 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-08 19:02:10,620 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-3}, {ULTIMATE.start_main_~x~0#1=4}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 1] [2024-11-08 19:02:10,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:10,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:10,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:10,636 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:10,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-08 19:02:10,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:10,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:10,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-08 19:02:10,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:10,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:10,668 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:10,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-08 19:02:10,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 19:02:10,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:10,906 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 19:02:10,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:10,909 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:10,909 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:10,909 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:10,910 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:10,910 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 19:02:10,910 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:10,910 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:10,910 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:10,910 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration5_Loop [2024-11-08 19:02:10,910 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:10,910 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:10,911 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:10,969 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:10,969 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 19:02:10,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:10,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:10,971 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:10,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-11-08 19:02:10,973 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 19:02:10,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:10,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:10,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:10,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:10,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-08 19:02:10,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-08 19:02:10,998 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:11,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-11-08 19:02:11,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:11,018 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:11,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-11-08 19:02:11,021 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 19:02:11,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:11,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:11,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:11,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:11,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:11,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 19:02:11,036 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:11,039 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-08 19:02:11,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:11,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:11,058 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:11,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-11-08 19:02:11,060 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 19:02:11,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:11,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:11,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:11,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:11,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:11,075 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 19:02:11,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:11,078 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 19:02:11,085 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-08 19:02:11,085 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-08 19:02:11,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:11,087 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:11,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-08 19:02:11,089 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 19:02:11,089 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 19:02:11,090 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 19:02:11,090 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~z~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2024-11-08 19:02:11,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:11,110 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 19:02:11,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,155 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:11,167 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 19:02:11,168 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-08 19:02:11,168 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 19:02:11,184 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) Result 36 states and 48 transitions. Complement of second has 5 states. [2024-11-08 19:02:11,185 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 19:02:11,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 19:02:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2024-11-08 19:02:11,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-08 19:02:11,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:11,186 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 19:02:11,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,236 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:11,248 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 19:02:11,248 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-08 19:02:11,248 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 19:02:11,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) Result 38 states and 48 transitions. Complement of second has 5 states. [2024-11-08 19:02:11,272 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 19:02:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 19:02:11,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-08 19:02:11,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-08 19:02:11,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:11,273 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-08 19:02:11,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,319 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:11,329 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 19:02:11,330 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 2 loop predicates [2024-11-08 19:02:11,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 13 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 19:02:11,348 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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) Result 37 states and 50 transitions. Complement of second has 6 states. [2024-11-08 19:02:11,350 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 19:02:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 19:02:11,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2024-11-08 19:02:11,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-08 19:02:11,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:11,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2024-11-08 19:02:11,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:11,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 4 letters. [2024-11-08 19:02:11,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:11,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2024-11-08 19:02:11,353 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-08 19:02:11,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 40 transitions. [2024-11-08 19:02:11,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-08 19:02:11,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2024-11-08 19:02:11,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 40 transitions. [2024-11-08 19:02:11,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-08 19:02:11,358 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 40 transitions. [2024-11-08 19:02:11,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 40 transitions. [2024-11-08 19:02:11,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2024-11-08 19:02:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 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 19:02:11,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-11-08 19:02:11,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-08 19:02:11,362 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-08 19:02:11,362 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-08 19:02:11,362 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2024-11-08 19:02:11,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-08 19:02:11,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-08 19:02:11,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-08 19:02:11,363 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-08 19:02:11,363 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-08 19:02:11,363 INFO L745 eck$LassoCheckResult]: Stem: 1235#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1236#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_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 1233#L21 assume ((main_~x~0#1 <= 10000 && main_~x~0#1 >= -10000) && main_~y~0#1 <= 10000) && main_~z~0#1 <= 10000; 1234#L22-3 assume main_~y~0#1 >= 1; 1231#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 1232#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 1243#L24-4 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 1245#L22-3 assume main_~y~0#1 >= 1; 1229#L22-1 [2024-11-08 19:02:11,363 INFO L747 eck$LassoCheckResult]: Loop: 1229#L22-1 assume !!(main_~y~0#1 >= 1);main_~x~0#1 := main_~x~0#1 - 1; 1230#L24-3 assume main_~y~0#1 < main_~z~0#1; 1240#L24-1 assume !!(main_~y~0#1 < main_~z~0#1);main_~x~0#1 := 1 + main_~x~0#1;main_~z~0#1 := main_~z~0#1 - 1; 1241#L24-3 assume !(main_~y~0#1 < main_~z~0#1); 1244#L24-4 main_~y~0#1 := main_~x~0#1 + main_~y~0#1; 1237#L22-3 assume main_~y~0#1 >= 1; 1229#L22-1 [2024-11-08 19:02:11,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:11,363 INFO L85 PathProgramCache]: Analyzing trace with hash 119452288, now seen corresponding path program 2 times [2024-11-08 19:02:11,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:11,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584528685] [2024-11-08 19:02:11,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:11,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:11,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:11,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:11,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:11,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1305645237, now seen corresponding path program 1 times [2024-11-08 19:02:11,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:11,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444275780] [2024-11-08 19:02:11,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:11,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:11,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:11,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:11,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:11,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1507534836, now seen corresponding path program 6 times [2024-11-08 19:02:11,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:02:11,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324506663] [2024-11-08 19:02:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:02:11,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:02:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:11,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:02:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:02:11,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:02:11,477 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:11,477 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:11,478 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:11,478 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:11,478 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-08 19:02:11,478 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,478 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:11,478 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:11,478 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-11-08 19:02:11,478 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:11,478 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:11,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:11,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:11,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-08 19:02:11,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:11,601 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:11,601 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-08 19:02:11,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:11,605 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:11,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-08 19:02:11,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-08 19:02:11,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:11,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-08 19:02:11,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:11,640 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:11,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-08 19:02:11,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-08 19:02:11,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-08 19:02:11,782 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-08 19:02:11,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-08 19:02:11,785 INFO L204 LassoAnalysis]: Preferences: [2024-11-08 19:02:11,785 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-08 19:02:11,785 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-08 19:02:11,785 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-08 19:02:11,786 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-08 19:02:11,786 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,786 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-08 19:02:11,786 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-08 19:02:11,786 INFO L132 ssoRankerPreferences]: Filename of dumped script: LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c_Iteration6_Loop [2024-11-08 19:02:11,786 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-08 19:02:11,786 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-08 19:02:11,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:11,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:11,809 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-08 19:02:11,882 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-08 19:02:11,882 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-08 19:02:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:11,884 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:11,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-08 19:02:11,888 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 19:02:11,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-08 19:02:11,903 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-08 19:02:11,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-08 19:02:11,903 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-08 19:02:11,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-08 19:02:11,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-08 19:02:11,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-08 19:02:11,910 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-08 19:02:11,913 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-08 19:02:11,913 INFO L444 ModelExtractionUtils]: 3 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-08 19:02:11,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-08 19:02:11,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:02:11,917 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-08 19:02:11,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-08 19:02:11,919 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-08 19:02:11,919 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-08 19:02:11,919 INFO L474 LassoAnalysis]: Proved termination. [2024-11-08 19:02:11,919 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2024-11-08 19:02:11,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:11,938 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-08 19:02:11,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:02:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:02:11,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:02:11,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:02:12,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:02:12,028 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-08 19:02:12,028 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:12,081 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 9. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 53 states and 68 transitions. Complement of second has 8 states. [2024-11-08 19:02:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-08 19:02:12,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 19:02:12,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2024-11-08 19:02:12,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 6 letters. [2024-11-08 19:02:12,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:12,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 14 letters. Loop has 6 letters. [2024-11-08 19:02:12,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:12,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 8 letters. Loop has 12 letters. [2024-11-08 19:02:12,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-08 19:02:12,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 68 transitions. [2024-11-08 19:02:12,085 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 19:02:12,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 0 states and 0 transitions. [2024-11-08 19:02:12,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-08 19:02:12,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-08 19:02:12,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-08 19:02:12,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-08 19:02:12,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 19:02:12,086 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 19:02:12,086 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 19:02:12,086 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-08 19:02:12,086 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-08 19:02:12,087 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-08 19:02:12,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-08 19:02:12,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.11 07:02:12 BoogieIcfgContainer [2024-11-08 19:02:12,094 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-08 19:02:12,095 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:02:12,095 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:02:12,095 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:02:12,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:02:04" (3/4) ... [2024-11-08 19:02:12,098 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:02:12,099 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:02:12,100 INFO L158 Benchmark]: Toolchain (without parser) took 8477.72ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 118.6MB in the beginning and 150.9MB in the end (delta: -32.2MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2024-11-08 19:02:12,101 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 161.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:02:12,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.41ms. Allocated memory is still 161.5MB. Free memory was 118.6MB in the beginning and 107.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:02:12,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.73ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 106.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:02:12,102 INFO L158 Benchmark]: Boogie Preprocessor took 26.93ms. Allocated memory is still 161.5MB. Free memory was 106.0MB in the beginning and 104.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:02:12,102 INFO L158 Benchmark]: RCFGBuilder took 301.18ms. Allocated memory is still 161.5MB. Free memory was 104.5MB in the beginning and 94.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 19:02:12,103 INFO L158 Benchmark]: BuchiAutomizer took 7875.50ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 94.7MB in the beginning and 151.9MB in the end (delta: -57.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:02:12,103 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 209.7MB. Free memory was 151.9MB in the beginning and 150.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:02:12,105 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 161.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.41ms. Allocated memory is still 161.5MB. Free memory was 118.6MB in the beginning and 107.2MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.73ms. Allocated memory is still 161.5MB. Free memory was 107.2MB in the beginning and 106.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.93ms. Allocated memory is still 161.5MB. Free memory was 106.0MB in the beginning and 104.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.18ms. Allocated memory is still 161.5MB. Free memory was 104.5MB in the beginning and 94.7MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7875.50ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 94.7MB in the beginning and 151.9MB in the end (delta: -57.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 209.7MB. Free memory was 151.9MB in the beginning and 150.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: IfThenElseExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (1 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has 2-nested ranking function null, null and consists of 5 locations. One deterministic module has affine ranking function (((long) -1 * y) + z) and consists of 5 locations. One deterministic module has 2-nested ranking function null, null and consists of 5 locations. One deterministic module has affine ranking function z and consists of 5 locations. One nondeterministic module has 2-nested ranking function null, null and consists of 5 locations. One nondeterministic module has affine ranking function (((long) -1 * y) + z) and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. Construction of modules took 0.2s. Büchi inclusion checks took 2.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 5 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 [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 234 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 95 mSDtfsCounter, 234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf93 smp98 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s 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 19:02:12,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-08 19:02:12,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-08 19:02:12,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252ccbfd-c16e-433e-8b83-3d4bb4598b88/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