./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-05.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx --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 48505588d7e651383dbb51501a7ba8151dafe2f0aaf2cdca9e989876f7735131 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:58:19,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:58:19,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 20:58:19,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:58:19,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:58:19,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:58:19,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:58:19,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:58:19,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:58:19,701 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:58:19,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:58:19,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:58:19,703 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:58:19,704 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 20:58:19,704 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 20:58:19,705 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 20:58:19,706 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 20:58:19,706 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 20:58:19,707 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 20:58:19,707 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:58:19,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 20:58:19,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:58:19,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:58:19,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 20:58:19,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 20:58:19,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 20:58:19,712 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 20:58:19,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:58:19,713 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 20:58:19,713 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:58:19,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:58:19,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:58:19,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:58:19,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:58:19,716 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 20:58:19,717 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_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48505588d7e651383dbb51501a7ba8151dafe2f0aaf2cdca9e989876f7735131 [2023-11-21 20:58:20,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:58:20,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:58:20,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:58:20,078 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:58:20,078 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:58:20,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-bwb/and-05.c [2023-11-21 20:58:23,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:58:23,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:58:23,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/sv-benchmarks/c/termination-bwb/and-05.c [2023-11-21 20:58:23,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/data/adc4eb592/3eca8400e8c5489ba98cebc43a707a67/FLAGa401568d9 [2023-11-21 20:58:23,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/data/adc4eb592/3eca8400e8c5489ba98cebc43a707a67 [2023-11-21 20:58:23,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:58:23,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:58:23,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:23,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:58:23,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:58:23,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8d2c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23, skipping insertion in model container [2023-11-21 20:58:23,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,547 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:58:23,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:23,696 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:58:23,707 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:23,718 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:58:23,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23 WrapperNode [2023-11-21 20:58:23,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:23,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:23,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:58:23,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:58:23,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,753 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 28 [2023-11-21 20:58:23,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:23,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:58:23,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:58:23,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:58:23,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,766 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,767 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,774 INFO L187 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-21 20:58:23,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:58:23,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:58:23,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:58:23,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:58:23,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (1/1) ... [2023-11-21 20:58:23,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:23,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:23,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:23,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 20:58:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:58:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:58:23,932 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:58:23,935 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:58:24,045 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:58:24,059 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:58:24,059 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 20:58:24,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:24 BoogieIcfgContainer [2023-11-21 20:58:24,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:58:24,063 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 20:58:24,063 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 20:58:24,067 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 20:58:24,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 20:58:24,068 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 08:58:23" (1/3) ... [2023-11-21 20:58:24,070 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78d85658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 08:58:24, skipping insertion in model container [2023-11-21 20:58:24,070 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 20:58:24,070 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:23" (2/3) ... [2023-11-21 20:58:24,071 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78d85658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 08:58:24, skipping insertion in model container [2023-11-21 20:58:24,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 20:58:24,071 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:24" (3/3) ... [2023-11-21 20:58:24,072 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-05.c [2023-11-21 20:58:24,125 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 20:58:24,126 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 20:58:24,126 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 20:58:24,126 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 20:58:24,126 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 20:58:24,126 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 20:58:24,127 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 20:58:24,127 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 20:58:24,131 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:24,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:24,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 20:58:24,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 20:58:24,150 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 20:58:24,150 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 20:58:24,150 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 20:58:24,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:24,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:24,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 20:58:24,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 20:58:24,153 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 20:58:24,153 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 20:58:24,159 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L16-2true [2023-11-21 20:58:24,160 INFO L750 eck$LassoCheckResult]: Loop: 8#L16-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 3#L17true assume 0 == main_~x~0#1 - 1 || 0 == main_~y~0#1;main_#t~nondet2#1 := 0; 10#L17-4true main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 8#L16-2true [2023-11-21 20:58:24,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:24,165 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 20:58:24,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:24,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051740700] [2023-11-21 20:58:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:24,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:24,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:24,285 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:24,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:24,288 INFO L85 PathProgramCache]: Analyzing trace with hash 40819, now seen corresponding path program 1 times [2023-11-21 20:58:24,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:24,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408206527] [2023-11-21 20:58:24,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:24,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:24,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:24,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:24,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:24,329 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-11-21 20:58:24,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:24,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67478537] [2023-11-21 20:58:24,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:24,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:24,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:24,347 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:24,473 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:24,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:24,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:24,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:24,474 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 20:58:24,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:24,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:24,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2023-11-21 20:58:24,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:24,476 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:24,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:24,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:24,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:24,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:24,570 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 20:58:24,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:58:24,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:24,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 20:58:24,619 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 20:58:24,619 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 20:58:24,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:24,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 20:58:24,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:58:24,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:24,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 20:58:24,663 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 20:58:24,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:24,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,686 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:58:24,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:24,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 20:58:24,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:24,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 20:58:24,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 20:58:24,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:24,787 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 20:58:24,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:24,809 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:24,809 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:24,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:24,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:24,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 20:58:24,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:24,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:24,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration1_Loop [2023-11-21 20:58:24,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:24,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:24,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:24,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:24,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:24,890 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:24,894 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 20:58:24,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,903 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,911 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 [2023-11-21 20:58:24,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 20:58:24,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:24,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:24,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:24,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:24,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:24,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:24,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:24,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:24,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:24,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:24,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:24,972 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:24,981 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 [2023-11-21 20:58:24,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:24,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:24,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:24,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:24,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:25,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 20:58:25,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:25,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:25,019 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:25,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:25,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:25,046 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:25,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 20:58:25,051 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 [2023-11-21 20:58:25,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:25,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:25,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:25,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:25,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:25,066 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:25,066 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:25,071 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 20:58:25,083 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-21 20:58:25,083 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 20:58:25,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:25,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:25,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 20:58:25,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 20:58:25,111 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 20:58:25,111 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 20:58:25,112 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-21 20:58:25,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:25,139 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 20:58:25,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,181 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:58:25,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:25,197 WARN L260 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 20:58:25,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:25,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:25,323 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 [2023-11-21 20:58:25,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-21 20:58:25,435 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 40 states and 52 transitions. Complement of second has 14 states. [2023-11-21 20:58:25,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2023-11-21 20:58:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-21 20:58:25,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 27 transitions. [2023-11-21 20:58:25,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-21 20:58:25,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:25,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-21 20:58:25,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:25,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 27 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-21 20:58:25,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:25,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 52 transitions. [2023-11-21 20:58:25,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:25,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 20 states and 28 transitions. [2023-11-21 20:58:25,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-21 20:58:25,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 20:58:25,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2023-11-21 20:58:25,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 20:58:25,457 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 28 transitions. [2023-11-21 20:58:25,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2023-11-21 20:58:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2023-11-21 20:58:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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) [2023-11-21 20:58:25,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-21 20:58:25,486 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-21 20:58:25,486 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-21 20:58:25,486 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 20:58:25,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-11-21 20:58:25,487 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:25,487 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 20:58:25,487 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 20:58:25,487 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 20:58:25,487 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 20:58:25,488 INFO L748 eck$LassoCheckResult]: Stem: 111#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 112#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_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~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; 115#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 108#L17 [2023-11-21 20:58:25,488 INFO L750 eck$LassoCheckResult]: Loop: 108#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 104#L17-2 assume main_~x~0#1 - 1 == main_~y~0#1;main_#t~nondet2#1 := main_~x~0#1 - 1; 105#L17-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 113#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 108#L17 [2023-11-21 20:58:25,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:25,488 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-21 20:58:25,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:25,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658116520] [2023-11-21 20:58:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:25,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:25,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:25,510 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:25,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:25,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1419160, now seen corresponding path program 1 times [2023-11-21 20:58:25,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:25,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372217930] [2023-11-21 20:58:25,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:25,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:25,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:25,536 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:25,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:25,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1810723007, now seen corresponding path program 1 times [2023-11-21 20:58:25,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:25,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987684682] [2023-11-21 20:58:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:25,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:25,557 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:25,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:25,613 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:25,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:25,613 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:25,613 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:25,613 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 20:58:25,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:25,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:25,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2023-11-21 20:58:25,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:25,614 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:25,615 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:25,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:25,659 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:25,659 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 20:58:25,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:25,661 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:25,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 20:58:25,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:58:25,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:25,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:25,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:25,709 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:25,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 20:58:25,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:25,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 20:58:25,835 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 20:58:25,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:25,842 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:25,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:25,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:25,842 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:25,842 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 20:58:25,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:25,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:25,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration2_Loop [2023-11-21 20:58:25,843 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:25,843 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:25,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:25,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:25,895 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:25,895 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 20:58:25,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:25,897 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:25,904 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 [2023-11-21 20:58:25,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:25,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:25,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:25,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:25,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:25,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 20:58:25,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:25,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:25,939 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 20:58:25,945 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-21 20:58:25,945 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-21 20:58:25,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:25,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:25,950 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:25,959 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 20:58:25,960 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 20:58:25,960 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 20:58:25,960 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-21 20:58:25,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 20:58:25,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:25,987 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 20:58:26,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:58:26,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,076 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 20:58:26,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:26,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:26,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-21 20:58:26,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:26,209 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 [2023-11-21 20:58:26,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2023-11-21 20:58:26,281 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 34 states and 43 transitions. Complement of second has 9 states. [2023-11-21 20:58:26,281 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 [2023-11-21 20:58:26,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2023-11-21 20:58:26,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2023-11-21 20:58:26,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-21 20:58:26,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:26,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-21 20:58:26,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:26,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-21 20:58:26,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:26,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2023-11-21 20:58:26,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:26,295 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 27 states and 36 transitions. [2023-11-21 20:58:26,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-21 20:58:26,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 20:58:26,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2023-11-21 20:58:26,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 20:58:26,298 INFO L218 hiAutomatonCegarLoop]: Abstraction has 27 states and 36 transitions. [2023-11-21 20:58:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2023-11-21 20:58:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2023-11-21 20:58:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 states have internal predecessors, (33), 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) [2023-11-21 20:58:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2023-11-21 20:58:26,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-21 20:58:26,309 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2023-11-21 20:58:26,309 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 20:58:26,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2023-11-21 20:58:26,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:26,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 20:58:26,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 20:58:26,312 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-21 20:58:26,312 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 20:58:26,313 INFO L748 eck$LassoCheckResult]: Stem: 209#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 210#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 214#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 200#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 202#L17-2 assume !(main_~x~0#1 - 1 == main_~y~0#1);assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 <= main_~x~0#1 - 1;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1;assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 - 1 + main_~y~0#1;assume main_#t~nondet2#1 >= -2147483648; 206#L17-4 [2023-11-21 20:58:26,313 INFO L750 eck$LassoCheckResult]: Loop: 206#L17-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 211#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 212#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 216#L17-2 assume main_~x~0#1 - 1 == main_~y~0#1;main_#t~nondet2#1 := main_~x~0#1 - 1; 206#L17-4 [2023-11-21 20:58:26,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:26,314 INFO L85 PathProgramCache]: Analyzing trace with hash 28699821, now seen corresponding path program 1 times [2023-11-21 20:58:26,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:26,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423571485] [2023-11-21 20:58:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:26,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:26,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:26,351 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:26,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:26,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1619800, now seen corresponding path program 2 times [2023-11-21 20:58:26,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:26,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859652737] [2023-11-21 20:58:26,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:26,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:26,359 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:26,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:26,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:26,366 INFO L85 PathProgramCache]: Analyzing trace with hash 644902404, now seen corresponding path program 1 times [2023-11-21 20:58:26,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:26,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516773446] [2023-11-21 20:58:26,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:26,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:26,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:26,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516773446] [2023-11-21 20:58:26,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516773446] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 20:58:26,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037789382] [2023-11-21 20:58:26,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:26,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 20:58:26,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:26,481 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 20:58:26,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 20:58:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:26,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 20:58:26,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:26,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:26,573 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 20:58:26,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037789382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:26,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 20:58:26,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-21 20:58:26,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929639018] [2023-11-21 20:58:26,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:26,616 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:26,616 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:26,616 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:26,616 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:26,616 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 20:58:26,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:26,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:26,617 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:26,617 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration3_Loop [2023-11-21 20:58:26,617 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:26,617 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:26,618 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:26,658 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:26,658 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 20:58:26,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:26,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:26,660 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:26,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-21 20:58:26,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:58:26,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:26,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:26,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:26,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:26,747 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:26,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 20:58:26,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:26,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 20:58:32,657 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 20:58:32,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:32,661 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:32,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:32,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:32,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:32,662 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 20:58:32,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:32,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:32,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:32,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration3_Loop [2023-11-21 20:58:32,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:32,662 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:32,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:32,722 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:32,722 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 20:58:32,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:32,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:32,728 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:32,731 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 [2023-11-21 20:58:32,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:32,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:32,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:32,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:32,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:32,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 20:58:32,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:32,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:32,756 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 20:58:32,762 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-21 20:58:32,762 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-21 20:58:32,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:32,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:32,764 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:32,771 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 20:58:32,771 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 20:58:32,771 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 20:58:32,771 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~nondet2#1) = 1*ULTIMATE.start_main_#t~nondet2#1 Supporting invariants [] [2023-11-21 20:58:32,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 20:58:32,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:32,796 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 20:58:32,797 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-21 20:58:32,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 20:58:32,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:32,837 WARN L260 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 20:58:32,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:32,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:32,878 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 [2023-11-21 20:58:32,878 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:32,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 77 transitions. Complement of second has 7 states. [2023-11-21 20:58:32,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 20:58:32,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 20:58:32,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-21 20:58:32,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-21 20:58:32,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:32,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-21 20:58:32,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:32,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 5 letters. Loop has 8 letters. [2023-11-21 20:58:32,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:32,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 77 transitions. [2023-11-21 20:58:32,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-11-21 20:58:32,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 55 states and 75 transitions. [2023-11-21 20:58:32,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2023-11-21 20:58:32,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-21 20:58:32,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2023-11-21 20:58:32,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 20:58:32,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-11-21 20:58:32,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2023-11-21 20:58:32,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2023-11-21 20:58:32,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.3773584905660377) internal successors, (73), 52 states have internal predecessors, (73), 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) [2023-11-21 20:58:32,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 73 transitions. [2023-11-21 20:58:32,948 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 73 transitions. [2023-11-21 20:58:32,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:58:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 20:58:32,952 INFO L87 Difference]: Start difference. First operand 53 states and 73 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 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) [2023-11-21 20:58:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:58:33,001 INFO L93 Difference]: Finished difference Result 55 states and 70 transitions. [2023-11-21 20:58:33,001 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 70 transitions. [2023-11-21 20:58:33,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:33,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 48 states and 61 transitions. [2023-11-21 20:58:33,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-11-21 20:58:33,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-11-21 20:58:33,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 61 transitions. [2023-11-21 20:58:33,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 20:58:33,008 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 61 transitions. [2023-11-21 20:58:33,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 61 transitions. [2023-11-21 20:58:33,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2023-11-21 20:58:33,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 29 states have internal predecessors, (41), 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) [2023-11-21 20:58:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2023-11-21 20:58:33,020 INFO L240 hiAutomatonCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-11-21 20:58:33,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 20:58:33,023 INFO L428 stractBuchiCegarLoop]: Abstraction has 30 states and 41 transitions. [2023-11-21 20:58:33,023 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 20:58:33,023 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 41 transitions. [2023-11-21 20:58:33,024 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 20:58:33,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 20:58:33,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 20:58:33,025 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-21 20:58:33,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-21 20:58:33,025 INFO L748 eck$LassoCheckResult]: Stem: 480#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 481#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_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~res~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; 482#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 485#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 471#L17-2 [2023-11-21 20:58:33,025 INFO L750 eck$LassoCheckResult]: Loop: 471#L17-2 assume !(main_~x~0#1 - 1 == main_~y~0#1);assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 <= main_~x~0#1 - 1;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 <= main_~y~0#1;assume (main_~x~0#1 - 1 < 0 && main_~y~0#1 < 0) || main_#t~nondet2#1 >= 0;assume (main_~x~0#1 - 1 >= 0 && main_~y~0#1 >= 0) || main_#t~nondet2#1 > main_~x~0#1 - 1 + main_~y~0#1;assume main_#t~nondet2#1 >= -2147483648; 472#L17-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 477#L16-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 475#L17 assume !(0 == main_~x~0#1 - 1 || 0 == main_~y~0#1); 471#L17-2 [2023-11-21 20:58:33,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:33,026 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-11-21 20:58:33,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:33,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735895477] [2023-11-21 20:58:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:33,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:33,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:33,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:33,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:33,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1571592, now seen corresponding path program 1 times [2023-11-21 20:58:33,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:33,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047240195] [2023-11-21 20:58:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:33,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:33,057 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:33,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash 297897967, now seen corresponding path program 1 times [2023-11-21 20:58:33,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:33,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927327631] [2023-11-21 20:58:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:33,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 20:58:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 20:58:33,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 20:58:33,213 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:33,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:33,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:33,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:33,214 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 20:58:33,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:33,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:33,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:33,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Loop [2023-11-21 20:58:33,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:33,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:33,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:33,366 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:33,366 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 20:58:33,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:33,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:33,367 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:33,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 20:58:33,375 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:58:33,375 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:33,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:33,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:33,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:33,434 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:33,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 20:58:33,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:33,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-21 20:58:33,717 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 20:58:33,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:33,721 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:33,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:33,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:33,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:33,722 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 20:58:33,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:33,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:33,722 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:33,722 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Loop [2023-11-21 20:58:33,722 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:33,722 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:33,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:33,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:33,869 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 20:58:33,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:33,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:33,873 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:33,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-21 20:58:33,888 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 [2023-11-21 20:58:33,902 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:33,902 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:33,903 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:33,903 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:33,903 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:33,908 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-21 20:58:33,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:33,927 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:33,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:33,951 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-21 20:58:33,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:33,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:33,952 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:33,965 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 [2023-11-21 20:58:33,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:33,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:33,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:33,978 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:33,978 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-21 20:58:33,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-21 20:58:33,986 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 20:58:33,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,003 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,027 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-11-21 20:58:34,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,028 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,032 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 [2023-11-21 20:58:34,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-21 20:58:34,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:34,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:34,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:34,046 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:34,046 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-21 20:58:34,053 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-21 20:58:34,054 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,087 INFO L490 LassoAnalysis]: Using template '4-nested'. [2023-11-21 20:58:34,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,089 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,091 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 [2023-11-21 20:58:34,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-21 20:58:34,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:34,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:34,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:34,105 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:34,105 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-11-21 20:58:34,111 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2023-11-21 20:58:34,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,152 INFO L490 LassoAnalysis]: Using template '2-phase'. [2023-11-21 20:58:34,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,153 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,157 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 [2023-11-21 20:58:34,170 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-21 20:58:34,170 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-11-21 20:58:34,170 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:34,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:34,171 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:34,171 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-21 20:58:34,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-21 20:58:34,176 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 20:58:34,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,199 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,223 INFO L490 LassoAnalysis]: Using template '3-phase'. [2023-11-21 20:58:34,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,224 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,228 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 [2023-11-21 20:58:34,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-21 20:58:34,242 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-21 20:58:34,242 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2023-11-21 20:58:34,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:34,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:34,242 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:34,243 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-21 20:58:34,251 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-21 20:58:34,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,301 INFO L490 LassoAnalysis]: Using template '4-phase'. [2023-11-21 20:58:34,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,303 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,308 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 [2023-11-21 20:58:34,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-21 20:58:34,322 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-21 20:58:34,322 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-11-21 20:58:34,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:34,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:34,323 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:34,323 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-11-21 20:58:34,335 INFO L401 nArgumentSynthesizer]: We have 10 Motzkin's Theorem applications. [2023-11-21 20:58:34,336 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,397 INFO L490 LassoAnalysis]: Using template '2-lex'. [2023-11-21 20:58:34,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,398 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-21 20:58:34,401 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 [2023-11-21 20:58:34,414 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-21 20:58:34,414 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-11-21 20:58:34,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:34,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:34,415 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:34,415 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-21 20:58:34,420 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2023-11-21 20:58:34,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,457 INFO L490 LassoAnalysis]: Using template '3-lex'. [2023-11-21 20:58:34,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,459 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,475 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 [2023-11-21 20:58:34,488 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-21 20:58:34,488 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2023-11-21 20:58:34,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:34,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:34,488 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:34,488 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2023-11-21 20:58:34,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-21 20:58:34,496 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2023-11-21 20:58:34,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:34,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,531 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:34,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,579 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:34,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:34,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:34,579 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:34,579 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 20:58:34,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,580 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:34,580 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:34,580 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Lasso [2023-11-21 20:58:34,580 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:34,580 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:34,581 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:34,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:34,610 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:34,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:34,614 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:34,761 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:34,761 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 20:58:34,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,763 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 20:58:34,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:34,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-21 20:58:34,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:34,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:34,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:34,831 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:34,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 20:58:34,834 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 20:58:34,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-21 20:58:35,096 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 20:58:35,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-21 20:58:35,100 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 20:58:35,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 20:58:35,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 20:58:35,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 20:58:35,100 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 20:58:35,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:35,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 20:58:35,101 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 20:58:35,101 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-05.c_Iteration4_Lasso [2023-11-21 20:58:35,101 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 20:58:35,101 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 20:58:35,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:35,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:35,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:35,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:35,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 20:58:35,285 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 20:58:35,285 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 20:58:35,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:35,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:35,291 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:35,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-21 20:58:35,303 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 [2023-11-21 20:58:35,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:35,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:35,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:35,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:35,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:35,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:35,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:35,315 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:35,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-21 20:58:35,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:35,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:35,328 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:35,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-21 20:58:35,329 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 [2023-11-21 20:58:35,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:35,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:35,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:35,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:35,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:35,340 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:35,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:35,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:35,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-11-21 20:58:35,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:35,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:35,355 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:35,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-21 20:58:35,358 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 [2023-11-21 20:58:35,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:35,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 20:58:35,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:35,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 20:58:35,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:35,370 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 20:58:35,370 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 20:58:35,399 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 20:58:35,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:35,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:35,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:35,424 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:35,426 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 [2023-11-21 20:58:35,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 20:58:35,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-21 20:58:35,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 20:58:35,441 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 20:58:35,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 20:58:35,453 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-21 20:58:35,453 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-21 20:58:35,480 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 20:58:35,527 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2023-11-21 20:58:35,528 INFO L444 ModelExtractionUtils]: 5 out of 21 variables were initially zero. Simplification set additionally 10 variables to zero. [2023-11-21 20:58:35,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 20:58:35,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:35,530 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:35,532 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 20:58:35,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-21 20:58:35,560 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-21 20:58:35,560 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 20:58:35,561 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [-2*ULTIMATE.start_main_~y~0#1 + 3*ULTIMATE.start_main_~x~0#1 >= 0] [2023-11-21 20:58:35,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:35,584 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-21 20:58:35,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,622 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 20:58:35,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:35,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 20:58:35,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 20:58:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:58:35,797 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2023-11-21 20:58:35,798 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 41 transitions. cyclomatic complexity: 15 Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-21 20:58:35,895 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 41 transitions. cyclomatic complexity: 15. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 56 states and 75 transitions. Complement of second has 9 states. [2023-11-21 20:58:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-21 20:58:35,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-21 20:58:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2023-11-21 20:58:35,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 4 letters. [2023-11-21 20:58:35,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:35,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 8 letters. Loop has 4 letters. [2023-11-21 20:58:35,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:35,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-21 20:58:35,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 20:58:35,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 75 transitions. [2023-11-21 20:58:35,900 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 20:58:35,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 0 states and 0 transitions. [2023-11-21 20:58:35,900 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 20:58:35,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 20:58:35,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 20:58:35,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 20:58:35,901 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 20:58:35,901 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 20:58:35,901 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 20:58:35,901 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-21 20:58:35,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 20:58:35,902 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 20:58:35,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 20:58:35,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 08:58:35 BoogieIcfgContainer [2023-11-21 20:58:35,910 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 20:58:35,910 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 20:58:35,910 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 20:58:35,911 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 20:58:35,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:24" (3/4) ... [2023-11-21 20:58:35,913 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 20:58:35,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 20:58:35,915 INFO L158 Benchmark]: Toolchain (without parser) took 12413.45ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 114.0MB in the beginning and 97.7MB in the end (delta: 16.3MB). Peak memory consumption was 52.8MB. Max. memory is 16.1GB. [2023-11-21 20:58:35,915 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:58:35,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.18ms. Allocated memory is still 159.4MB. Free memory was 113.8MB in the beginning and 104.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 20:58:35,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.12ms. Allocated memory is still 159.4MB. Free memory was 104.2MB in the beginning and 103.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:58:35,917 INFO L158 Benchmark]: Boogie Preprocessor took 30.28ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 101.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 20:58:35,917 INFO L158 Benchmark]: RCFGBuilder took 276.67ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 92.6MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 20:58:35,918 INFO L158 Benchmark]: BuchiAutomizer took 11847.07ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 92.6MB in the beginning and 98.7MB in the end (delta: -6.2MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2023-11-21 20:58:35,918 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 192.9MB. Free memory was 98.7MB in the beginning and 97.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 20:58:35,920 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 119.5MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.18ms. Allocated memory is still 159.4MB. Free memory was 113.8MB in the beginning and 104.5MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.12ms. Allocated memory is still 159.4MB. Free memory was 104.2MB in the beginning and 103.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.28ms. Allocated memory is still 159.4MB. Free memory was 103.1MB in the beginning and 101.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.67ms. Allocated memory is still 159.4MB. Free memory was 101.4MB in the beginning and 92.6MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 11847.07ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 92.6MB in the beginning and 98.7MB in the end (delta: -6.2MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 192.9MB. Free memory was 98.7MB in the beginning and 97.7MB 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: IdentifierExpression #t~nondet2 could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 8 locations. One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function null and consists of 4 locations. One deterministic module has affine ranking function x and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 10.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 29 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp94 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf93 smp89 dnf157 smp77 tf106 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 138ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 7.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-21 20:58:35,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:36,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 20:58:36,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b57a2c-f4c4-4171-8740-46928b73599d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE