./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.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_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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_62934132-e577-4691-a388-54ebf4eb30d1/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 e334e85dd18553afecc96b27cf49a003304cbca8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:20:17,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:20:17,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:20:17,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:20:17,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:20:17,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:20:17,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:20:17,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:20:17,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:20:17,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:20:17,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:20:17,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:20:17,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:20:17,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:20:17,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:20:17,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:20:17,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:20:17,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:20:17,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:20:17,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:20:17,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:20:17,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:20:17,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:20:17,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:20:17,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:20:17,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:20:17,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:20:17,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:20:17,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:20:17,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:20:17,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:20:17,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:20:17,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:20:17,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:20:17,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:20:17,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:20:17,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:20:17,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:20:17,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:20:17,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:20:17,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:20:17,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:20:18,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:20:18,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:20:18,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:20:18,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:20:18,047 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:20:18,047 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:20:18,048 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:20:18,048 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:20:18,048 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:20:18,049 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:20:18,050 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:20:18,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:20:18,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:20:18,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:20:18,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:20:18,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:20:18,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:20:18,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:20:18,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:20:18,052 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:20:18,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:20:18,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:20:18,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:20:18,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:20:18,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:20:18,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:20:18,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:20:18,056 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:20:18,056 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_62934132-e577-4691-a388-54ebf4eb30d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e334e85dd18553afecc96b27cf49a003304cbca8 [2021-10-11 00:20:18,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:20:18,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:20:18,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:20:18,497 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:20:18,498 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:20:18,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-10-11 00:20:18,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/data/f34fedc5a/0de9c6d06b16455fa6add67ea2f6a517/FLAG59b60ba0e [2021-10-11 00:20:19,254 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:20:19,255 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-10-11 00:20:19,269 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/data/f34fedc5a/0de9c6d06b16455fa6add67ea2f6a517/FLAG59b60ba0e [2021-10-11 00:20:19,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/data/f34fedc5a/0de9c6d06b16455fa6add67ea2f6a517 [2021-10-11 00:20:19,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:20:19,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:20:19,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:19,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:20:19,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:20:19,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ace87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19, skipping insertion in model container [2021-10-11 00:20:19,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:20:19,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:20:19,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:19,850 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:20:19,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:20:19,893 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:20:19,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19 WrapperNode [2021-10-11 00:20:19,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:20:19,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:19,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:20:19,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:20:19,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:20:19,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:20:19,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:20:19,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:20:19,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... [2021-10-11 00:20:19,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:20:19,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:20:19,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:20:19,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:20:19,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:20,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:20:20,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:20:20,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:20:20,240 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:20:20,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:20 BoogieIcfgContainer [2021-10-11 00:20:20,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:20:20,243 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:20:20,244 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:20:20,247 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:20:20,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:20:20,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:20:19" (1/3) ... [2021-10-11 00:20:20,251 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b0d2250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:20:20, skipping insertion in model container [2021-10-11 00:20:20,251 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:20:20,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:20:19" (2/3) ... [2021-10-11 00:20:20,252 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b0d2250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:20:20, skipping insertion in model container [2021-10-11 00:20:20,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:20:20,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:20" (3/3) ... [2021-10-11 00:20:20,254 INFO L389 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-10-11 00:20:20,317 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:20:20,317 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:20:20,317 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:20:20,317 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:20:20,317 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:20:20,318 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:20:20,318 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:20:20,318 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:20:20,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2021-10-11 00:20:20,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:20:20,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:20:20,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:20:20,366 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:20:20,381 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:20:20,382 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:20:20,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2021-10-11 00:20:20,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:20:20,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:20:20,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:20:20,384 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:20:20,384 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:20:20,393 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 9#L21-2true [2021-10-11 00:20:20,393 INFO L796 eck$LassoCheckResult]: Loop: 9#L21-2true assume !!(main_~v1~0 > 0); 3#L21true assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 9#L21-2true [2021-10-11 00:20:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2021-10-11 00:20:20,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:20,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705816350] [2021-10-11 00:20:20,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:20,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:20,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:20,594 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:20,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:20,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2021-10-11 00:20:20,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:20,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570994768] [2021-10-11 00:20:20,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:20,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:20,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:20,633 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:20,636 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2021-10-11 00:20:20,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:20,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438602429] [2021-10-11 00:20:20,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:20,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:20,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:20,670 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:20,804 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:20,805 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:20,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:20,806 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:20,806 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:20:20,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:20,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:20,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:20,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2021-10-11 00:20:20,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:20,808 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:20,831 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 00:20:20,852 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 00:20:20,864 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 00:20:20,893 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 00:20:21,103 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:21,103 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:21,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:21,127 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 00:20:21,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:20:21,161 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:21,210 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:21,210 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 00:20:21,230 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:20:21,230 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:21,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:21,280 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 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:21,344 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:20:21,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:20:21,505 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:20:21,507 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:21,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:21,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:21,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:21,508 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:20:21,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:21,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:21,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:21,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration1_Loop [2021-10-11 00:20:21,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:21,508 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:21,511 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 00:20:21,516 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 00:20:21,520 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 00:20:21,529 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 00:20:21,628 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:21,639 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:21,649 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 00:20:21,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:21,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:21,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:21,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:21,659 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:20:21,660 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:20:21,674 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:21,722 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 00:20:21,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:21,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:21,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:21,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:21,731 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:20:21,731 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:21,753 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:21,803 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 00:20:21,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:21,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:20:21,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:21,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:21,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:21,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:20:21,809 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 00:20:21,825 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:20:21,833 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-11 00:20:21,833 INFO L444 ModelExtractionUtils]: 0 out of 4 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:21,843 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:20:21,843 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:20:21,843 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:20:21,844 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~v2~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:21,883 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:20:21,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:21,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:21,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:21,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:21,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:20:21,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:21,999 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 00:20:22,027 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 00:20:22,028 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2021-10-11 00:20:22,075 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2021-10-11 00:20:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:20:22,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:20:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-11 00:20:22,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-11 00:20:22,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:22,086 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:20:22,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:22,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-11 00:20:22,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:22,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-11 00:20:22,091 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:20:22,095 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-10-11 00:20:22,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-11 00:20:22,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-10-11 00:20:22,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-11 00:20:22,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:20:22,097 INFO L692 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-11 00:20:22,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-11 00:20:22,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-11 00:20:22,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 00:20:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-10-11 00:20:22,120 INFO L715 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-11 00:20:22,120 INFO L595 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-11 00:20:22,120 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:20:22,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-10-11 00:20:22,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:20:22,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:20:22,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:20:22,122 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-11 00:20:22,122 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:20:22,123 INFO L794 eck$LassoCheckResult]: Stem: 76#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 77#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 78#L21-2 assume !!(main_~v1~0 > 0); 72#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 73#L21-2 [2021-10-11 00:20:22,123 INFO L796 eck$LassoCheckResult]: Loop: 73#L21-2 assume !!(main_~v1~0 > 0); 79#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 73#L21-2 [2021-10-11 00:20:22,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:22,124 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2021-10-11 00:20:22,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:22,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66242337] [2021-10-11 00:20:22,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:22,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:22,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66242337] [2021-10-11 00:20:22,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:20:22,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:20:22,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483911098] [2021-10-11 00:20:22,194 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:20:22,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:22,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2021-10-11 00:20:22,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:22,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687686582] [2021-10-11 00:20:22,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:22,217 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:22,222 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:22,223 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:22,245 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:22,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:22,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:22,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:22,246 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:20:22,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:22,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:22,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:22,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2021-10-11 00:20:22,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:22,248 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:22,250 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 00:20:22,254 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 00:20:22,262 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 00:20:22,270 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 00:20:22,329 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:22,329 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:22,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:22,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:20:22,364 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:20:22,364 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:22,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:22,395 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:22,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:20:22,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:20:22,576 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:20:22,578 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:22,578 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:22,578 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:22,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:22,578 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:20:22,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:22,579 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:22,579 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:22,579 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration2_Loop [2021-10-11 00:20:22,579 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:22,579 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:22,581 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 00:20:22,602 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 00:20:22,611 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 00:20:22,622 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 00:20:22,718 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:22,720 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:22,723 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 00:20:22,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:22,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:22,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:22,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:22,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:20:22,729 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:20:22,747 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:22,776 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 00:20:22,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:22,778 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:20:22,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:22,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:22,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:22,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:20:22,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:20:22,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:20:22,789 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-11 00:20:22,789 INFO L444 ModelExtractionUtils]: 0 out of 4 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_62934132-e577-4691-a388-54ebf4eb30d1/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:22,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:20:22,792 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:20:22,792 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:20:22,793 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~v2~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~v2~0 Supporting invariants [] [2021-10-11 00:20:22,819 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:20:22,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:22,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:22,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:22,855 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:20:22,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:22,887 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 00:20:22,892 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 00:20:22,893 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2021-10-11 00:20:22,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2021-10-11 00:20:22,910 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 00:20:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:20:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-11 00:20:22,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:20:22,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:22,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-11 00:20:22,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:22,915 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-11 00:20:22,915 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:22,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2021-10-11 00:20:22,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:20:22,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2021-10-11 00:20:22,920 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-11 00:20:22,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-11 00:20:22,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2021-10-11 00:20:22,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:20:22,921 INFO L692 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-11 00:20:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2021-10-11 00:20:22,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 00:20:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 00:20:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2021-10-11 00:20:22,926 INFO L715 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2021-10-11 00:20:22,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:22,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:20:22,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:20:22,932 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 3 states. [2021-10-11 00:20:22,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:22,956 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2021-10-11 00:20:22,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 00:20:22,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2021-10-11 00:20:22,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:20:22,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 17 transitions. [2021-10-11 00:20:22,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-11 00:20:22,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-11 00:20:22,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-10-11 00:20:22,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:20:22,967 INFO L692 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-11 00:20:22,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-10-11 00:20:22,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-10-11 00:20:22,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 00:20:22,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-10-11 00:20:22,976 INFO L715 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-11 00:20:22,976 INFO L595 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-11 00:20:22,976 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:20:22,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2021-10-11 00:20:22,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:20:22,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:20:22,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:20:22,984 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2021-10-11 00:20:22,984 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:20:22,985 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 160#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 161#L21-2 assume !!(main_~v1~0 > 0); 157#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 158#L21-2 assume !!(main_~v1~0 > 0); 155#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 156#L21-2 assume !!(main_~v1~0 > 0); 164#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 162#L21-2 [2021-10-11 00:20:22,985 INFO L796 eck$LassoCheckResult]: Loop: 162#L21-2 assume !!(main_~v1~0 > 0); 163#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 162#L21-2 [2021-10-11 00:20:22,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:22,986 INFO L82 PathProgramCache]: Analyzing trace with hash -422236399, now seen corresponding path program 1 times [2021-10-11 00:20:22,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:22,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488367695] [2021-10-11 00:20:22,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:20:23,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488367695] [2021-10-11 00:20:23,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635288950] [2021-10-11 00:20:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 00:20:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:23,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 00:20:23,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 00:20:23,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 00:20:23,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-10-11 00:20:23,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137608157] [2021-10-11 00:20:23,132 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:20:23,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:23,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2021-10-11 00:20:23,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:23,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276285921] [2021-10-11 00:20:23,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:23,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:23,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:23,145 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:23,174 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:23,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:23,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:23,175 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:23,175 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:20:23,175 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:23,175 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:23,175 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:23,176 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2021-10-11 00:20:23,176 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:23,176 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:23,182 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 00:20:23,187 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 00:20:23,196 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 00:20:23,201 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 00:20:23,293 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:23,293 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:23,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:23,306 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:23,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:20:23,323 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_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:20:23,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:23,377 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 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_62934132-e577-4691-a388-54ebf4eb30d1/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:23,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:20:23,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:20:23,613 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:20:23,615 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:23,615 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:23,615 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:23,615 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:23,615 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:20:23,616 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:23,616 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:23,616 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:23,616 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration3_Loop [2021-10-11 00:20:23,616 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:23,616 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:23,617 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 00:20:23,627 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 00:20:23,640 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 00:20:23,647 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 00:20:23,712 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:23,713 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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) [2021-10-11 00:20:23,742 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 00:20:23,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:23,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:23,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:23,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:23,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:20:23,751 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:23,768 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_62934132-e577-4691-a388-54ebf4eb30d1/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) [2021-10-11 00:20:23,818 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 00:20:23,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:23,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:20:23,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:23,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:23,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:23,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:20:23,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:23,841 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:20:23,848 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-11 00:20:23,848 INFO L444 ModelExtractionUtils]: 0 out of 4 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_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:23,858 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:20:23,858 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:20:23,858 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:20:23,859 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~v2~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:23,898 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:20:23,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:23,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:23,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:24,009 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:20:24,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:24,011 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 00:20:24,012 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 00:20:24,013 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2021-10-11 00:20:24,026 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2021-10-11 00:20:24,026 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 00:20:24,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:20:24,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-11 00:20:24,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-11 00:20:24,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:24,027 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-11 00:20:24,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:24,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:24,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:24,082 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:20:24,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:24,084 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 00:20:24,085 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 00:20:24,085 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2021-10-11 00:20:24,094 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 5 states. [2021-10-11 00:20:24,095 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 00:20:24,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:20:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-11 00:20:24,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-11 00:20:24,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:24,096 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-11 00:20:24,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:24,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:24,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:24,141 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:20:24,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:24,143 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 00:20:24,144 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 00:20:24,144 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand 3 states. [2021-10-11 00:20:24,153 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 16 states and 23 transitions. Complement of second has 4 states. [2021-10-11 00:20:24,153 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 00:20:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:20:24,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-11 00:20:24,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2021-10-11 00:20:24,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:24,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2021-10-11 00:20:24,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:24,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2021-10-11 00:20:24,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:24,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2021-10-11 00:20:24,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-11 00:20:24,158 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2021-10-11 00:20:24,158 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-11 00:20:24,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-11 00:20:24,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2021-10-11 00:20:24,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:20:24,159 INFO L692 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2021-10-11 00:20:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2021-10-11 00:20:24,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2021-10-11 00:20:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 00:20:24,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-11 00:20:24,161 INFO L715 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-11 00:20:24,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:20:24,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:20:24,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:20:24,162 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 4 states. [2021-10-11 00:20:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:20:24,173 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2021-10-11 00:20:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:20:24,174 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2021-10-11 00:20:24,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-11 00:20:24,175 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 9 transitions. [2021-10-11 00:20:24,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-11 00:20:24,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-11 00:20:24,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2021-10-11 00:20:24,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-11 00:20:24,176 INFO L692 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2021-10-11 00:20:24,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2021-10-11 00:20:24,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2021-10-11 00:20:24,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-11 00:20:24,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2021-10-11 00:20:24,178 INFO L715 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-11 00:20:24,178 INFO L595 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2021-10-11 00:20:24,178 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-11 00:20:24,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2021-10-11 00:20:24,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-11 00:20:24,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:20:24,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:20:24,180 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:20:24,180 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-11 00:20:24,180 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 373#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 369#L21-2 [2021-10-11 00:20:24,180 INFO L796 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~v1~0 > 0); 370#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 371#L21-2 assume !!(main_~v1~0 > 0); 368#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 369#L21-2 [2021-10-11 00:20:24,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:24,181 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2021-10-11 00:20:24,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:24,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211162071] [2021-10-11 00:20:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:24,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:24,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:24,193 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:24,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:24,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1326601, now seen corresponding path program 1 times [2021-10-11 00:20:24,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:24,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775046587] [2021-10-11 00:20:24,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:24,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:24,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:24,208 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:24,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:24,209 INFO L82 PathProgramCache]: Analyzing trace with hash 920229996, now seen corresponding path program 2 times [2021-10-11 00:20:24,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:20:24,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752302497] [2021-10-11 00:20:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:20:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:24,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:20:24,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:20:24,227 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:20:24,295 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:24,296 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:24,296 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:24,296 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:24,296 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:20:24,296 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:24,297 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:24,297 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration4_Loop [2021-10-11 00:20:24,297 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:24,297 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:24,299 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 00:20:24,309 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 00:20:24,314 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 00:20:24,322 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 00:20:24,414 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:24,414 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:24,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:24,425 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:20:24,438 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~v2~0=0, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/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 00:20:24,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:24,481 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,494 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:20:24,494 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:20:24,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:20:24,538 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 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_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:20:24,607 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:20:24,607 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,722 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:20:24,724 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:20:24,724 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:20:24,724 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:20:24,724 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:20:24,725 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:20:24,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:20:24,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:20:24,725 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c_Iteration4_Loop [2021-10-11 00:20:24,725 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:20:24,725 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:20:24,727 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 00:20:24,739 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 00:20:24,747 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 00:20:24,754 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 00:20:24,840 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:20:24,840 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:20:24,850 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 00:20:24,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:24,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:20:24,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:24,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:24,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:24,855 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:20:24,855 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,865 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_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:20:24,908 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 00:20:24,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:20:24,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:20:24,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:20:24,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:20:24,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:20:24,912 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:20:24,912 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,925 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:20:24,936 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:20:24,936 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_62934132-e577-4691-a388-54ebf4eb30d1/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:20:24,941 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:20:24,941 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:20:24,941 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:20:24,941 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0) = 1*ULTIMATE.start_main_~v1~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:20:24,991 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:20:25,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:20:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:25,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:20:25,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:20:25,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:20:25,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:20:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:20:25,108 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-11 00:20:25,108 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 5 states. [2021-10-11 00:20:25,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 13 states and 15 transitions. Complement of second has 6 states. [2021-10-11 00:20:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:20:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-10-11 00:20:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-11 00:20:25,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-11 00:20:25,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:25,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-11 00:20:25,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:25,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2021-10-11 00:20:25,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:20:25,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2021-10-11 00:20:25,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:20:25,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2021-10-11 00:20:25,146 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:20:25,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:20:25,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:20:25,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:20:25,146 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:20:25,146 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:20:25,146 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:20:25,146 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-11 00:20:25,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:20:25,147 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:20:25,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:20:25,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:20:25 BoogieIcfgContainer [2021-10-11 00:20:25,154 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:20:25,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:20:25,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:20:25,155 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:20:25,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:20:20" (3/4) ... [2021-10-11 00:20:25,159 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:20:25,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:20:25,161 INFO L168 Benchmark]: Toolchain (without parser) took 5529.07 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 64.3 MB in the beginning and 84.7 MB in the end (delta: -20.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:25,162 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 80.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:25,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.50 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 77.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:25,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 98.6 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:25,170 INFO L168 Benchmark]: Boogie Preprocessor took 20.04 ms. Allocated memory is still 98.6 MB. Free memory was 76.1 MB in the beginning and 75.2 MB in the end (delta: 821.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:25,170 INFO L168 Benchmark]: RCFGBuilder took 277.17 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 65.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:25,171 INFO L168 Benchmark]: BuchiAutomizer took 4910.59 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 65.4 MB in the beginning and 84.7 MB in the end (delta: -19.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:20:25,172 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 119.5 MB. Free memory is still 84.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:20:25,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 80.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.50 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 77.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 98.6 MB. Free memory was 77.3 MB in the beginning and 76.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.04 ms. Allocated memory is still 98.6 MB. Free memory was 76.1 MB in the beginning and 75.2 MB in the end (delta: 821.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 277.17 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 65.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4910.59 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 65.4 MB in the beginning and 84.7 MB in the end (delta: -19.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.51 ms. Allocated memory is still 119.5 MB. Free memory is still 84.7 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * v2 + m and consists of 4 locations. One deterministic module has affine ranking function m + -1 * v2 and consists of 3 locations. One deterministic module has affine ranking function v1 and consists of 4 locations. One nondeterministic module has affine ranking function -1 * v2 + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 45 SDtfs, 35 SDslu, 12 SDs, 0 SdLazy, 33 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...