./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sunset.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_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/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_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sunset.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/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_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/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 b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:16:52,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:16:52,594 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 22:16:52,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:16:52,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:16:52,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:16:52,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:16:52,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:16:52,629 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:16:52,630 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:16:52,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:16:52,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:16:52,632 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:16:52,632 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:16:52,633 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:16:52,633 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:16:52,634 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:16:52,634 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:16:52,635 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:16:52,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:16:52,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:16:52,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:16:52,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:16:52,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:16:52,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:16:52,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:16:52,643 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:16:52,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:16:52,644 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:16:52,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:16:52,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:16:52,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:16:52,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:16:52,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:16:52,647 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:16:52,647 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_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 [2023-11-21 22:16:52,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:16:52,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:16:52,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:16:52,967 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:16:52,968 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:16:52,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-restricted-15/Sunset.c [2023-11-21 22:16:56,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:16:56,470 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:16:56,470 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/sv-benchmarks/c/termination-restricted-15/Sunset.c [2023-11-21 22:16:56,476 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/data/0cba54e30/6516a853d661418f8f4b17b140aa343b/FLAGb3463d982 [2023-11-21 22:16:56,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/data/0cba54e30/6516a853d661418f8f4b17b140aa343b [2023-11-21 22:16:56,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:16:56,493 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:16:56,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:56,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:16:56,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:16:56,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18203ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56, skipping insertion in model container [2023-11-21 22:16:56,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,520 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:16:56,671 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:56,677 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:16:56,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:56,701 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:16:56,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56 WrapperNode [2023-11-21 22:16:56,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:56,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:56,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:16:56,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:16:56,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,732 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-11-21 22:16:56,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:56,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:16:56,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:16:56,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:16:56,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,747 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,752 INFO L187 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-21 22:16:56,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:16:56,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:16:56,762 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:16:56,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:16:56,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (1/1) ... [2023-11-21 22:16:56,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:56,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:56,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:56,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:16:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:16:56,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:16:56,897 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:16:56,899 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:16:56,957 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:56,969 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:56,970 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:16:56,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:56 BoogieIcfgContainer [2023-11-21 22:16:56,972 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:56,973 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:16:56,973 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:16:56,977 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:16:56,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:16:56,979 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:16:56" (1/3) ... [2023-11-21 22:16:56,980 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38a0cf05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:16:56, skipping insertion in model container [2023-11-21 22:16:56,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:16:56,980 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:56" (2/3) ... [2023-11-21 22:16:56,981 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38a0cf05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:16:56, skipping insertion in model container [2023-11-21 22:16:56,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:16:56,981 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:56" (3/3) ... [2023-11-21 22:16:56,983 INFO L332 chiAutomizerObserver]: Analyzing ICFG Sunset.c [2023-11-21 22:16:57,046 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:16:57,046 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:16:57,046 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:16:57,046 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:16:57,047 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:16:57,047 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:16:57,047 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:16:57,047 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:16:57,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:57,066 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:16:57,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:16:57,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:16:57,071 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:16:57,071 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:16:57,072 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:16:57,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:57,073 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:16:57,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:16:57,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:16:57,074 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:16:57,074 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:16:57,081 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 3#L13-1true [2023-11-21 22:16:57,081 INFO L750 eck$LassoCheckResult]: Loop: 3#L13-1true assume !!(main_~i~0#1 > 10); 6#L10true assume !(25 == main_~i~0#1); 4#L10-2true assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 3#L13-1true [2023-11-21 22:16:57,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:57,087 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 22:16:57,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:57,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139432193] [2023-11-21 22:16:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:57,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:57,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:57,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:57,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2023-11-21 22:16:57,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:57,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052510008] [2023-11-21 22:16:57,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:57,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:57,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:57,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:57,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash 28699820, now seen corresponding path program 1 times [2023-11-21 22:16:57,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:57,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670682430] [2023-11-21 22:16:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:57,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:57,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:57,452 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:16:57,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:16:57,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:16:57,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:16:57,454 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:16:57,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:57,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:16:57,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:16:57,456 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2023-11-21 22:16:57,456 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:16:57,457 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:16:57,497 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 22:16:57,518 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 22:16:57,525 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 22:16:57,667 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:16:57,668 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:16:57,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:57,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:57,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:57,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:16:57,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:57,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:16:57,715 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:16:57,716 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:16:57,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:57,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:57,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:57,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:57,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:16:57,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:57,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:16:57,788 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:16:57,789 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:16:57,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:57,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:57,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:57,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:57,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:16:57,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:57,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:16:57,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:57,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:57,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:57,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:57,884 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:16:57,885 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:57,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:16:57,948 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:16:57,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:57,953 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:16:57,953 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:16:57,953 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:16:57,953 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:16:57,953 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:16:57,954 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:57,954 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:16:57,954 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:16:57,954 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2023-11-21 22:16:57,954 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:16:57,954 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:16:57,957 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 22:16:57,962 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 22:16:57,966 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 22:16:58,060 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:16:58,065 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:16:58,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,081 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 22:16:58,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:16:58,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:16:58,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:16:58,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:16:58,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:16:58,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:16:58,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:16:58,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:16:58,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:58,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,141 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,154 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 22:16:58,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:16:58,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:16:58,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:16:58,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:16:58,168 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:16:58,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:16:58,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:16:58,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:16:58,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:58,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,214 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,226 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 22:16:58,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:16:58,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:16:58,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:16:58,239 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 22:16:58,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:16:58,244 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-21 22:16:58,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:16:58,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:16:58,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:16:58,262 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:16:58,262 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:16:58,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,306 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:16:58,309 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:16:58,309 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:16:58,309 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:16:58,310 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-21 22:16:58,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-21 22:16:58,334 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:16:58,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:58,365 WARN L260 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:16:58,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:58,380 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:16:58,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:58,407 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 22:16:58,443 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-21 22:16:58,445 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 22:16:58,494 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 23 states and 33 transitions. Complement of second has 8 states. [2023-11-21 22:16:58,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-21 22:16:58,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 22:16:58,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-21 22:16:58,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-21 22:16:58,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:16:58,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-21 22:16:58,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:16:58,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-21 22:16:58,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:16:58,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 33 transitions. [2023-11-21 22:16:58,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:16:58,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 15 transitions. [2023-11-21 22:16:58,513 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-21 22:16:58,513 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-21 22:16:58,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2023-11-21 22:16:58,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:16:58,515 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-21 22:16:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2023-11-21 22:16:58,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-11-21 22:16:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:58,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2023-11-21 22:16:58,543 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-21 22:16:58,544 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2023-11-21 22:16:58,544 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:16:58,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2023-11-21 22:16:58,545 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:16:58,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:16:58,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:16:58,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-21 22:16:58,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:16:58,546 INFO L748 eck$LassoCheckResult]: Stem: 81#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 82#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 78#L13-1 assume !!(main_~i~0#1 > 10); 80#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 74#L10-2 [2023-11-21 22:16:58,547 INFO L750 eck$LassoCheckResult]: Loop: 74#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 75#L13-1 assume !!(main_~i~0#1 > 10); 83#L10 assume !(25 == main_~i~0#1); 74#L10-2 [2023-11-21 22:16:58,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:58,547 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-11-21 22:16:58,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:58,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519369281] [2023-11-21 22:16:58,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:58,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:58,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:58,559 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 2 times [2023-11-21 22:16:58,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:58,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422525934] [2023-11-21 22:16:58,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:58,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,565 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:58,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,570 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:58,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:58,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664019, now seen corresponding path program 1 times [2023-11-21 22:16:58,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:58,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280295355] [2023-11-21 22:16:58,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:58,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:58,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:58,613 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:16:58,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:16:58,613 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:16:58,613 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:16:58,613 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:16:58,614 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,614 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:16:58,614 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:16:58,614 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2023-11-21 22:16:58,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:16:58,614 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:16:58,616 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 22:16:58,619 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 22:16:58,628 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 22:16:58,706 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:16:58,706 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:16:58,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,709 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 22:16:58,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:16:58,716 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:58,741 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:16:58,742 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:16:58,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:58,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,766 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:16:58,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:58,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 22:16:58,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:58,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:58,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:58,818 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:58,829 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:16:58,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:58,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 22:16:58,992 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:16:59,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:59,001 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:16:59,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:16:59,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:16:59,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:16:59,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:16:59,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:16:59,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:16:59,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2023-11-21 22:16:59,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:16:59,002 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:16:59,003 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 22:16:59,019 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 22:16:59,033 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 22:16:59,124 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:16:59,124 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:16:59,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:59,126 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:59,138 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 22:16:59,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:16:59,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:16:59,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:16:59,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:16:59,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 22:16:59,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:16:59,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:16:59,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:16:59,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:59,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:59,190 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:59,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-21 22:16:59,194 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 22:16:59,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:16:59,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:16:59,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:16:59,204 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 22:16:59,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:16:59,207 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-21 22:16:59,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:16:59,219 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:16:59,222 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-21 22:16:59,222 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 22:16:59,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:59,228 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:59,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-21 22:16:59,235 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:16:59,235 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:16:59,235 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:16:59,235 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-21 22:16:59,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:59,260 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:16:59,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:59,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:16:59,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:59,301 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:16:59,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:16:59,369 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 22:16:59,371 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 22:16:59,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:59,407 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 33 transitions. Complement of second has 7 states. [2023-11-21 22:16:59,408 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 22:16:59,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:16:59,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-21 22:16:59,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2023-11-21 22:16:59,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:16:59,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-21 22:16:59,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:16:59,425 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2023-11-21 22:16:59,426 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:16:59,426 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 33 transitions. [2023-11-21 22:16:59,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:16:59,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 28 transitions. [2023-11-21 22:16:59,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-21 22:16:59,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-11-21 22:16:59,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2023-11-21 22:16:59,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:16:59,433 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2023-11-21 22:16:59,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2023-11-21 22:16:59,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-21 22:16:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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 22:16:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2023-11-21 22:16:59,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2023-11-21 22:16:59,440 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2023-11-21 22:16:59,440 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:16:59,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2023-11-21 22:16:59,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-21 22:16:59,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:16:59,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:16:59,444 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2023-11-21 22:16:59,444 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:16:59,444 INFO L748 eck$LassoCheckResult]: Stem: 160#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 161#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 156#L13-1 assume !!(main_~i~0#1 > 10); 157#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 151#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 152#L13-1 assume !!(main_~i~0#1 > 10); 159#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 162#L10-2 [2023-11-21 22:16:59,444 INFO L750 eck$LassoCheckResult]: Loop: 162#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 163#L13-1 assume !!(main_~i~0#1 > 10); 164#L10 assume !(25 == main_~i~0#1); 162#L10-2 [2023-11-21 22:16:59,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:59,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664017, now seen corresponding path program 1 times [2023-11-21 22:16:59,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:59,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212390477] [2023-11-21 22:16:59,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:59,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:59,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:59,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:16:59,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:59,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212390477] [2023-11-21 22:16:59,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212390477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:59,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:59,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:16:59,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340839981] [2023-11-21 22:16:59,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:59,541 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:16:59,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 3 times [2023-11-21 22:16:59,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:59,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608759700] [2023-11-21 22:16:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:59,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:59,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:59,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:59,575 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:16:59,575 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:16:59,575 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:16:59,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:16:59,576 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:16:59,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,576 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:16:59,576 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:16:59,576 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2023-11-21 22:16:59,577 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:16:59,577 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:16:59,578 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 22:16:59,581 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 22:16:59,591 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 22:16:59,681 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:16:59,681 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:16:59,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:59,685 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:59,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:16:59,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:59,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 22:16:59,710 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:16:59,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:16:59,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:59,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:59,735 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:59,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:16:59,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:59,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 22:16:59,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:16:59,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:59,793 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:59,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:16:59,797 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:16:59,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 22:16:59,947 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:16:59,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-11-21 22:16:59,950 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:16:59,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:16:59,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:16:59,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:16:59,951 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:16:59,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:16:59,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:16:59,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:16:59,951 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2023-11-21 22:16:59,951 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:16:59,951 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:16:59,953 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 22:16:59,978 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 22:16:59,982 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 22:17:00,089 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:17:00,089 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:17:00,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:00,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:00,090 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:00,098 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 22:17:00,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:17:00,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:17:00,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:17:00,111 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-21 22:17:00,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:17:00,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 22:17:00,121 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-21 22:17:00,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:17:00,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:17:00,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:17:00,152 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:17:00,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:00,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:00,155 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:00,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-21 22:17:00,160 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:17:00,160 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:17:00,160 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:17:00,160 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-21 22:17:00,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:00,173 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:17:00,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:17:00,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,213 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:17:00,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:00,250 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 22:17:00,251 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 22:17:00,251 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 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 22:17:00,295 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. 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 24 states and 35 transitions. Complement of second has 7 states. [2023-11-21 22:17:00,295 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 22:17:00,297 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 22:17:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-21 22:17:00,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-21 22:17:00,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:00,300 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-21 22:17:00,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:17:00,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,346 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:17:00,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:00,385 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 22:17:00,386 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-21 22:17:00,386 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 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 22:17:00,433 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. 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 22 states and 33 transitions. Complement of second has 7 states. [2023-11-21 22:17:00,433 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 22:17:00,437 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 22:17:00,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-11-21 22:17:00,437 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-21 22:17:00,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:00,438 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-21 22:17:00,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:17:00,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,479 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:17:00,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:00,512 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 22:17:00,512 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-21 22:17:00,513 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 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 22:17:00,544 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. 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 34 states and 50 transitions. Complement of second has 7 states. [2023-11-21 22:17:00,545 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 22:17:00,546 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 22:17:00,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-11-21 22:17:00,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-21 22:17:00,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:00,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-21 22:17:00,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:00,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-21 22:17:00,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:00,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2023-11-21 22:17:00,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2023-11-21 22:17:00,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 37 transitions. [2023-11-21 22:17:00,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-21 22:17:00,552 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-21 22:17:00,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions. [2023-11-21 22:17:00,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:17:00,552 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 37 transitions. [2023-11-21 22:17:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions. [2023-11-21 22:17:00,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2023-11-21 22:17:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 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 22:17:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2023-11-21 22:17:00,555 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 25 transitions. [2023-11-21 22:17:00,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:00,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:17:00,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:17:00,559 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:17:00,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:17:00,596 INFO L93 Difference]: Finished difference Result 19 states and 29 transitions. [2023-11-21 22:17:00,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 29 transitions. [2023-11-21 22:17:00,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2023-11-21 22:17:00,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 29 transitions. [2023-11-21 22:17:00,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-21 22:17:00,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-21 22:17:00,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2023-11-21 22:17:00,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:17:00,598 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 29 transitions. [2023-11-21 22:17:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2023-11-21 22:17:00,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-11-21 22:17:00,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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 22:17:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2023-11-21 22:17:00,600 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 26 transitions. [2023-11-21 22:17:00,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:17:00,601 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2023-11-21 22:17:00,602 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 22:17:00,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2023-11-21 22:17:00,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2023-11-21 22:17:00,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:17:00,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:17:00,603 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:17:00,603 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:17:00,603 INFO L748 eck$LassoCheckResult]: Stem: 424#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 425#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 426#L13-1 assume !!(main_~i~0#1 > 10); 422#L10 [2023-11-21 22:17:00,603 INFO L750 eck$LassoCheckResult]: Loop: 422#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 418#L10-2 assume !(main_~i~0#1 <= 30);main_~i~0#1 := 20; 419#L13-1 assume !!(main_~i~0#1 > 10); 422#L10 [2023-11-21 22:17:00,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:00,604 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-21 22:17:00,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:00,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612633999] [2023-11-21 22:17:00,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:00,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:00,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:17:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:00,611 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:17:00,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:00,612 INFO L85 PathProgramCache]: Analyzing trace with hash 43938, now seen corresponding path program 1 times [2023-11-21 22:17:00,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:00,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414379970] [2023-11-21 22:17:00,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:00,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,630 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 22:17:00,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:00,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414379970] [2023-11-21 22:17:00,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414379970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:00,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:00,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:17:00,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450102075] [2023-11-21 22:17:00,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:00,631 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-21 22:17:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:00,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:17:00,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:17:00,632 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 22:17:00,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:17:00,645 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2023-11-21 22:17:00,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2023-11-21 22:17:00,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-21 22:17:00,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2023-11-21 22:17:00,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-21 22:17:00,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-11-21 22:17:00,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2023-11-21 22:17:00,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:17:00,648 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-21 22:17:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2023-11-21 22:17:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2023-11-21 22:17:00,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 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 22:17:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2023-11-21 22:17:00,650 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 21 transitions. [2023-11-21 22:17:00,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:17:00,651 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2023-11-21 22:17:00,651 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-21 22:17:00,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2023-11-21 22:17:00,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-21 22:17:00,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:17:00,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:17:00,653 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1] [2023-11-21 22:17:00,653 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2023-11-21 22:17:00,653 INFO L748 eck$LassoCheckResult]: Stem: 465#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 467#L13-1 assume !!(main_~i~0#1 > 10); 462#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 456#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 457#L13-1 assume !!(main_~i~0#1 > 10); 461#L10 assume !(25 == main_~i~0#1); 458#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 459#L13-1 assume !!(main_~i~0#1 > 10); 471#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 468#L10-2 [2023-11-21 22:17:00,653 INFO L750 eck$LassoCheckResult]: Loop: 468#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 460#L13-1 assume !!(main_~i~0#1 > 10); 461#L10 assume !(25 == main_~i~0#1); 458#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 459#L13-1 assume !!(main_~i~0#1 > 10); 471#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 468#L10-2 [2023-11-21 22:17:00,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:00,654 INFO L85 PathProgramCache]: Analyzing trace with hash 997539140, now seen corresponding path program 2 times [2023-11-21 22:17:00,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:00,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039830583] [2023-11-21 22:17:00,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:00,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:00,712 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:17:00,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:00,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039830583] [2023-11-21 22:17:00,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039830583] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:17:00,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717703202] [2023-11-21 22:17:00,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:17:00,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:17:00,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:00,715 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:17:00,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-21 22:17:00,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:17:00,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:17:00,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:17:00,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:17:00,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:17:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:17:00,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717703202] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:17:00,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:17:00,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-21 22:17:00,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363261081] [2023-11-21 22:17:00,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:17:00,822 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:17:00,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:00,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1470741663, now seen corresponding path program 1 times [2023-11-21 22:17:00,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:00,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681960816] [2023-11-21 22:17:00,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:00,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:00,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:17:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:00,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:17:00,869 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:17:00,870 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:17:00,870 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:17:00,870 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:17:00,870 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:17:00,870 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:00,870 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:17:00,870 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:17:00,870 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2023-11-21 22:17:00,870 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:17:00,870 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:17:00,872 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 22:17:00,876 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 22:17:00,883 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 22:17:00,926 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:17:00,926 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:17:00,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:00,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:00,927 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:00,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-21 22:17:00,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:17:00,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:17:00,976 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:17:00,976 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:17:00,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:01,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:01,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:01,001 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:01,005 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:17:01,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:17:01,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-21 22:17:01,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:01,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:01,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:01,055 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:01,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:17:01,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:17:01,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-21 22:17:01,086 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:17:01,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:01,125 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:17:01,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:17:01,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:17:01,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:17:01,125 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:17:01,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:01,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:17:01,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:17:01,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2023-11-21 22:17:01,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:17:01,126 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:17:01,127 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 22:17:01,136 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 22:17:01,141 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 22:17:01,186 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:17:01,186 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:17:01,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:01,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:01,188 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:01,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-21 22:17:01,190 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 22:17:01,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:17:01,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:17:01,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:17:01,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:17:01,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:17:01,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:17:01,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:17:01,232 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:17:01,235 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:17:01,235 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 22:17:01,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:17:01,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:01,242 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:01,246 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:17:01,246 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:17:01,247 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:17:01,247 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 57 Supporting invariants [] [2023-11-21 22:17:01,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-21 22:17:01,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:01,272 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:17:01,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:01,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:17:01,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:01,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:17:01,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:17:01,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:17:01,368 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 22:17:01,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 22:17:01,396 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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) Result 31 states and 37 transitions. Complement of second has 7 states. [2023-11-21 22:17:01,397 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 22:17:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 22:17:01,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-21 22:17:01,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2023-11-21 22:17:01,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:01,404 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2023-11-21 22:17:01,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:01,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2023-11-21 22:17:01,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:17:01,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2023-11-21 22:17:01,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-11-21 22:17:01,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 36 transitions. [2023-11-21 22:17:01,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-21 22:17:01,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-21 22:17:01,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2023-11-21 22:17:01,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:17:01,410 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 36 transitions. [2023-11-21 22:17:01,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2023-11-21 22:17:01,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2023-11-21 22:17:01,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 25 states have internal predecessors, (32), 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 22:17:01,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-11-21 22:17:01,417 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-11-21 22:17:01,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:01,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:17:01,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:17:01,421 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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 22:17:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:17:01,453 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-11-21 22:17:01,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2023-11-21 22:17:01,454 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2023-11-21 22:17:01,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 35 transitions. [2023-11-21 22:17:01,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-21 22:17:01,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-21 22:17:01,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 35 transitions. [2023-11-21 22:17:01,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:17:01,456 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-11-21 22:17:01,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 35 transitions. [2023-11-21 22:17:01,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-11-21 22:17:01,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 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 22:17:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-21 22:17:01,459 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-21 22:17:01,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:17:01,460 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-21 22:17:01,461 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-21 22:17:01,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 30 transitions. [2023-11-21 22:17:01,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2023-11-21 22:17:01,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:17:01,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:17:01,463 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 2, 1, 1] [2023-11-21 22:17:01,463 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 5, 4, 1] [2023-11-21 22:17:01,463 INFO L748 eck$LassoCheckResult]: Stem: 702#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 703#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 704#L13-1 assume !!(main_~i~0#1 > 10); 701#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 698#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 697#L13-1 assume !!(main_~i~0#1 > 10); 696#L10 assume !(25 == main_~i~0#1); 699#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 700#L13-1 assume !!(main_~i~0#1 > 10); 720#L10 assume !(25 == main_~i~0#1); 719#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 718#L13-1 assume !!(main_~i~0#1 > 10); 717#L10 assume !(25 == main_~i~0#1); 716#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 715#L13-1 assume !!(main_~i~0#1 > 10); 714#L10 assume !(25 == main_~i~0#1); 712#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 713#L13-1 assume !!(main_~i~0#1 > 10); 711#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 710#L10-2 [2023-11-21 22:17:01,463 INFO L750 eck$LassoCheckResult]: Loop: 710#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 695#L13-1 assume !!(main_~i~0#1 > 10); 696#L10 assume !(25 == main_~i~0#1); 699#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 700#L13-1 assume !!(main_~i~0#1 > 10); 720#L10 assume !(25 == main_~i~0#1); 719#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 718#L13-1 assume !!(main_~i~0#1 > 10); 717#L10 assume !(25 == main_~i~0#1); 716#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 715#L13-1 assume !!(main_~i~0#1 > 10); 714#L10 assume !(25 == main_~i~0#1); 712#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 713#L13-1 assume !!(main_~i~0#1 > 10); 711#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 710#L10-2 [2023-11-21 22:17:01,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:01,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1587470191, now seen corresponding path program 3 times [2023-11-21 22:17:01,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:01,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701281453] [2023-11-21 22:17:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:01,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,474 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:17:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:17:01,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:01,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1155970966, now seen corresponding path program 2 times [2023-11-21 22:17:01,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:01,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037399692] [2023-11-21 22:17:01,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:01,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:17:01,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:17:01,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:01,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1288805114, now seen corresponding path program 4 times [2023-11-21 22:17:01,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:01,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520871067] [2023-11-21 22:17:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:01,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:17:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:17:01,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:01,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:17:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:17:01,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:17:01 BoogieIcfgContainer [2023-11-21 22:17:01,777 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:17:01,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:17:01,777 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:17:01,778 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:17:01,778 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:56" (3/4) ... [2023-11-21 22:17:01,780 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:17:01,844 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:17:01,844 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:17:01,845 INFO L158 Benchmark]: Toolchain (without parser) took 5351.24ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 99.8MB in the beginning and 133.0MB in the end (delta: -33.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:17:01,845 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:17:01,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.87ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 89.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:17:01,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.37ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 88.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:17:01,846 INFO L158 Benchmark]: Boogie Preprocessor took 27.74ms. Allocated memory is still 144.7MB. Free memory was 88.8MB in the beginning and 87.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:17:01,846 INFO L158 Benchmark]: RCFGBuilder took 209.76ms. Allocated memory is still 144.7MB. Free memory was 87.2MB in the beginning and 78.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:17:01,847 INFO L158 Benchmark]: BuchiAutomizer took 4803.79ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 78.9MB in the beginning and 135.1MB in the end (delta: -56.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:17:01,847 INFO L158 Benchmark]: Witness Printer took 66.71ms. Allocated memory is still 176.2MB. Free memory was 135.1MB in the beginning and 133.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:17:01,849 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 117.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.87ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 89.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.37ms. Allocated memory is still 144.7MB. Free memory was 89.9MB in the beginning and 88.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.74ms. Allocated memory is still 144.7MB. Free memory was 88.8MB in the beginning and 87.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 209.76ms. Allocated memory is still 144.7MB. Free memory was 87.2MB in the beginning and 78.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4803.79ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 78.9MB in the beginning and 135.1MB in the end (delta: -56.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 66.71ms. Allocated memory is still 176.2MB. Free memory was 135.1MB in the beginning and 133.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function ((-2 * i) + 57) and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 6 iterations. TraceHistogramMax:6. Analysis of lassos took 3.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 21 StatesRemovedByMinimization, 6 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 [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 56 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax190 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf146 smp89 tf107 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=29] [L9] COND TRUE i > 10 VAL [i=29] [L10] COND FALSE !(i == 25) VAL [i=29] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=28] [L9] COND TRUE i > 10 VAL [i=28] [L10] COND FALSE !(i == 25) VAL [i=28] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=27] [L9] COND TRUE i > 10 VAL [i=27] [L10] COND FALSE !(i == 25) VAL [i=27] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=26] [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] Loop: [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=29] [L9] COND TRUE i > 10 VAL [i=29] [L10] COND FALSE !(i == 25) VAL [i=29] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=28] [L9] COND TRUE i > 10 VAL [i=28] [L10] COND FALSE !(i == 25) VAL [i=28] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=27] [L9] COND TRUE i > 10 VAL [i=27] [L10] COND FALSE !(i == 25) VAL [i=27] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=26] [L9] COND TRUE i > 10 VAL [i=26] [L10] COND FALSE !(i == 25) VAL [i=26] [L13] COND TRUE i <= 30 [L14] i = i-1 VAL [i=25] [L9] COND TRUE i > 10 VAL [i=25] [L10] COND TRUE i == 25 [L11] i = 30 VAL [i=30] Loop: [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:17:01,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:17:02,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520ddf25-12b9-4d36-9cd9-0f2ca3cf7d59/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)