./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:23:45,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:45,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:45,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:45,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:45,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:45,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:45,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:45,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:45,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:45,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:45,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:45,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:45,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:45,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:45,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:45,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:45,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:45,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:45,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:45,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:45,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:45,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:45,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:45,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:45,980 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:45,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:45,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:45,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:45,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:45,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:45,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:45,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:45,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:45,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:45,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:45,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:45,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:45,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:45,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:45,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:45,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:23:46,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:46,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:46,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:46,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:46,027 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:46,028 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:23:46,028 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:23:46,028 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:23:46,028 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:23:46,029 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:23:46,029 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:23:46,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:46,029 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:23:46,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:46,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:46,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:23:46,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:23:46,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:23:46,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:46,031 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:23:46,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:46,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:23:46,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:46,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:46,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:46,033 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:46,033 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:46,035 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:23:46,041 INFO L138 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_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2021-10-11 00:23:46,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:46,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:46,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:46,354 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:46,356 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:46,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2021-10-11 00:23:46,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/data/672840834/8076512ed6b1474cbcb6ae096e23d8fb/FLAGaf4ed6adb [2021-10-11 00:23:47,073 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:47,073 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2021-10-11 00:23:47,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/data/672840834/8076512ed6b1474cbcb6ae096e23d8fb/FLAGaf4ed6adb [2021-10-11 00:23:47,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/data/672840834/8076512ed6b1474cbcb6ae096e23d8fb [2021-10-11 00:23:47,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:47,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:47,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:47,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:47,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:47,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fab01e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47, skipping insertion in model container [2021-10-11 00:23:47,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:47,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:47,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:47,653 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:47,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:47,679 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:47,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47 WrapperNode [2021-10-11 00:23:47,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:47,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:47,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:47,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:47,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:47,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:47,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:47,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:47,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... [2021-10-11 00:23:47,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:47,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:47,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:47,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:47,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:47,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:47,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:47,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:47,969 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 00:23:47,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:47 BoogieIcfgContainer [2021-10-11 00:23:47,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:47,974 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:23:47,974 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:23:47,977 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:23:47,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:47,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:23:47" (1/3) ... [2021-10-11 00:23:47,982 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36a4091b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:23:47, skipping insertion in model container [2021-10-11 00:23:47,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:47,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:47" (2/3) ... [2021-10-11 00:23:47,983 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36a4091b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:23:47, skipping insertion in model container [2021-10-11 00:23:47,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:47,984 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:47" (3/3) ... [2021-10-11 00:23:47,986 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2021-10-11 00:23:48,032 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:23:48,033 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:23:48,033 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:23:48,033 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:48,033 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:48,033 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:23:48,033 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:48,034 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:23:48,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2021-10-11 00:23:48,063 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-11 00:23:48,063 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:48,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:48,069 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:23:48,069 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:23:48,070 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:23:48,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2021-10-11 00:23:48,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-11 00:23:48,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:48,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:48,071 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:23:48,072 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:23:48,078 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 3#L17-2true [2021-10-11 00:23:48,078 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 6#L19-2true assume !(main_~j~0 > 0); 5#L19-3true main_~i~0 := main_~i~0 - 1; 3#L17-2true [2021-10-11 00:23:48,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:48,084 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-11 00:23:48,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:48,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769173218] [2021-10-11 00:23:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:48,175 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:48,180 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:48,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:48,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:48,196 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-11 00:23:48,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:48,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816349235] [2021-10-11 00:23:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:48,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:48,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:48,213 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:48,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:48,215 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2021-10-11 00:23:48,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:48,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287548173] [2021-10-11 00:23:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:48,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287548173] [2021-10-11 00:23:48,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:48,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:23:48,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998243749] [2021-10-11 00:23:48,414 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:48,415 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:48,415 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:48,415 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:48,415 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:23:48,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:48,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:48,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:48,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2021-10-11 00:23:48,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:48,430 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:48,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:48,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:48,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:48,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:48,629 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:48,630 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:48,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:48,655 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:48,674 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:48,675 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:48,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:48,717 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:48,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:48,735 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:48,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:48,774 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:48,803 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:48,803 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Honda state: {ULTIMATE.start_main_~j~0=-3, ULTIMATE.start_main_~N~0=-3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:48,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:48,843 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:48,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:23:48,907 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:48,960 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:23:48,962 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:48,962 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:48,962 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:48,963 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:48,963 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:23:48,963 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:48,963 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:48,963 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:48,963 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2021-10-11 00:23:48,963 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:48,963 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:48,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:48,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:48,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:48,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:49,086 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:49,091 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:49,099 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:49,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:49,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:49,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:49,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,108 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:49,108 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:23:49,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:49,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:49,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:49,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:23:49,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:49,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:49,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:49,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:23:49,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:49,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:49,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:49,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:49,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:49,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:49,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:49,229 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:49,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:49,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:23:49,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:49,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:49,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:49,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:23:49,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:23:49,305 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:23:49,310 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:23:49,310 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,338 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:23:49,338 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:23:49,339 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:23:49,339 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-11 00:23:49,375 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:23:49,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:49,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:49,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:49,450 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:49,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:49,494 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:23:49,495 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2021-10-11 00:23:49,546 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2021-10-11 00:23:49,547 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 [2021-10-11 00:23:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:23:49,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-10-11 00:23:49,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2021-10-11 00:23:49,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:49,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-11 00:23:49,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:49,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2021-10-11 00:23:49,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:49,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2021-10-11 00:23:49,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:49,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-11 00:23:49,569 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-11 00:23:49,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-11 00:23:49,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-11 00:23:49,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:23:49,571 INFO L692 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-11 00:23:49,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-11 00:23:49,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2021-10-11 00:23:49,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 00:23:49,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2021-10-11 00:23:49,600 INFO L715 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2021-10-11 00:23:49,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:49,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:23:49,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:23:49,611 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2021-10-11 00:23:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:49,646 INFO L93 Difference]: Finished difference Result 11 states and 15 transitions. [2021-10-11 00:23:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:23:49,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2021-10-11 00:23:49,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-11 00:23:49,651 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 15 transitions. [2021-10-11 00:23:49,651 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-11 00:23:49,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-11 00:23:49,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2021-10-11 00:23:49,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:23:49,652 INFO L692 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-11 00:23:49,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2021-10-11 00:23:49,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2021-10-11 00:23:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 00:23:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-11 00:23:49,655 INFO L715 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-11 00:23:49,655 INFO L595 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-11 00:23:49,655 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:23:49,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-11 00:23:49,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:49,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:49,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:49,659 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:23:49,663 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:23:49,663 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 91#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 93#L19-2 [2021-10-11 00:23:49,663 INFO L796 eck$LassoCheckResult]: Loop: 93#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 93#L19-2 [2021-10-11 00:23:49,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:49,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-11 00:23:49,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:49,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687667103] [2021-10-11 00:23:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:49,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:49,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:49,686 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:49,687 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-11 00:23:49,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:49,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299667761] [2021-10-11 00:23:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:49,698 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:49,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:49,714 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:49,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:49,715 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-11 00:23:49,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:49,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132057821] [2021-10-11 00:23:49,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:49,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:49,735 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:49,739 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:49,776 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:49,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:49,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:49,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:49,776 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:23:49,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:49,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:49,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2021-10-11 00:23:49,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:49,777 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:49,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:49,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:49,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:49,849 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:49,849 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:49,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:49,863 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,887 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:49,887 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:49,927 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:49,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:23:49,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:23:50,005 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:23:50,007 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:50,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:50,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:50,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:50,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:23:50,008 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,008 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:50,008 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:50,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2021-10-11 00:23:50,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:50,008 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:50,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,069 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:50,069 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:50,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:50,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:50,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:50,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:50,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:50,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:50,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,157 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:50,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:50,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:23:50,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:50,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:50,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:50,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:23:50,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:23:50,177 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:23:50,181 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:23:50,182 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:50,205 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:23:50,206 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:23:50,206 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:23:50,206 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,238 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:23:50,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:50,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:50,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:50,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:50,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:50,266 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:23:50,266 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2021-10-11 00:23:50,276 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 14 states and 19 transitions. Complement of second has 5 states. [2021-10-11 00:23:50,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:23:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:23:50,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-11 00:23:50,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-11 00:23:50,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:50,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-11 00:23:50,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:50,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-11 00:23:50,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:50,278 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-10-11 00:23:50,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:50,280 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2021-10-11 00:23:50,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-11 00:23:50,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-11 00:23:50,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2021-10-11 00:23:50,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:23:50,281 INFO L692 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2021-10-11 00:23:50,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2021-10-11 00:23:50,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2021-10-11 00:23:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 00:23:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-11 00:23:50,283 INFO L715 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-11 00:23:50,283 INFO L595 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-11 00:23:50,283 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:23:50,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-11 00:23:50,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:50,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:50,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:50,284 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2021-10-11 00:23:50,285 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:23:50,285 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 141#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 142#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 145#L19-2 assume !(main_~j~0 > 0); 146#L19-3 main_~i~0 := main_~i~0 - 1; 143#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 144#L19-2 [2021-10-11 00:23:50,285 INFO L796 eck$LassoCheckResult]: Loop: 144#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 144#L19-2 [2021-10-11 00:23:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:50,286 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2021-10-11 00:23:50,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:50,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520923079] [2021-10-11 00:23:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:50,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520923079] [2021-10-11 00:23:50,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306049194] [2021-10-11 00:23:50,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:23:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:50,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 00:23:50,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:50,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-11 00:23:50,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-11 00:23:50,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407097293] [2021-10-11 00:23:50,513 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:23:50,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:50,513 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2021-10-11 00:23:50,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:50,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836590427] [2021-10-11 00:23:50,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:50,525 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:50,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:50,539 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:50,557 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:50,557 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:50,557 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:50,557 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:50,557 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:23:50,557 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,557 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:50,557 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:50,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2021-10-11 00:23:50,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:50,558 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:50,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,614 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:50,614 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:50,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:50,622 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,646 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:50,646 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:50,675 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,708 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:23:50,708 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:23:50,752 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:23:50,754 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:50,754 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:50,754 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:50,754 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:50,754 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:23:50,754 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,754 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:50,754 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:50,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2021-10-11 00:23:50,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:50,755 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:50,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:50,804 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:50,804 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:50,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:50,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:50,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:50,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:50,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:50,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:50,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,849 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:50,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:50,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:50,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:23:50,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:50,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:50,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:50,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:23:50,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,917 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:23:50,921 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:23:50,922 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f13f59c1-bef0-4674-9dda-392dd956d7bf/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:50,942 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:23:50,942 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:23:50,942 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:23:50,942 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:50,976 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:23:50,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:51,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:51,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:51,011 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:51,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:51,013 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:23:51,013 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2021-10-11 00:23:51,023 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2021-10-11 00:23:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:23:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:23:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-11 00:23:51,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-11 00:23:51,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:51,025 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-11 00:23:51,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:51,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:51,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:51,054 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:51,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:51,055 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:23:51,055 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2021-10-11 00:23:51,063 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2021-10-11 00:23:51,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:23:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:23:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-11 00:23:51,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-11 00:23:51,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:51,065 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-11 00:23:51,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:51,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:51,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:51,096 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:51,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:51,097 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:23:51,098 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2021-10-11 00:23:51,112 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2021-10-11 00:23:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:23:51,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:23:51,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-10-11 00:23:51,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-11 00:23:51,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:51,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-11 00:23:51,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:51,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-11 00:23:51,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:51,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-11 00:23:51,115 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:51,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-10-11 00:23:51,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:23:51,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:23:51,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:23:51,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:23:51,116 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:51,116 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:51,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:51,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:23:51,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:23:51,117 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2021-10-11 00:23:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:51,118 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-11 00:23:51,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:23:51,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-11 00:23:51,118 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:51,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:23:51,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:23:51,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:23:51,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:23:51,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:23:51,119 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:51,119 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:51,119 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:51,119 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:23:51,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:23:51,120 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:51,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:23:51,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:23:51 BoogieIcfgContainer [2021-10-11 00:23:51,126 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:23:51,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:51,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:51,127 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:51,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:47" (3/4) ... [2021-10-11 00:23:51,130 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:23:51,131 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:51,132 INFO L168 Benchmark]: Toolchain (without parser) took 3708.95 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.6 MB in the beginning and 35.3 MB in the end (delta: 31.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,133 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 96.5 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:51,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.29 ms. Allocated memory is still 96.5 MB. Free memory was 66.3 MB in the beginning and 72.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,134 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:51,135 INFO L168 Benchmark]: Boogie Preprocessor took 18.90 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 70.6 MB in the end (delta: 940.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,135 INFO L168 Benchmark]: RCFGBuilder took 241.95 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 62.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,136 INFO L168 Benchmark]: BuchiAutomizer took 3151.86 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.2 MB in the beginning and 35.3 MB in the end (delta: 26.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:51,137 INFO L168 Benchmark]: Witness Printer took 4.57 ms. Allocated memory is still 117.4 MB. Free memory is still 35.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:51,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 96.5 MB. Free memory is still 54.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.29 ms. Allocated memory is still 96.5 MB. Free memory was 66.3 MB in the beginning and 72.6 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.90 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 70.6 MB in the end (delta: 940.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 241.95 ms. Allocated memory is still 96.5 MB. Free memory was 70.6 MB in the beginning and 62.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3151.86 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.2 MB in the beginning and 35.3 MB in the end (delta: 26.9 MB). Peak memory consumption was 48.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.57 ms. Allocated memory is still 117.4 MB. Free memory is still 35.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 25 SDslu, 13 SDs, 0 SdLazy, 34 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax204 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...