./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer --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 8a2bee874d696cf0b3efef86c5a2ac3b6d5e9dca ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:25:55,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:25:55,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:25:55,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:25:55,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:25:55,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:25:55,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:25:55,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:25:55,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:25:55,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:25:55,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:25:55,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:25:55,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:25:55,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:25:55,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:25:55,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:25:55,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:25:55,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:25:56,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:25:56,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:25:56,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:25:56,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:25:56,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:25:56,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:25:56,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:25:56,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:25:56,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:25:56,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:25:56,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:25:56,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:25:56,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:25:56,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:25:56,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:25:56,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:25:56,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:25:56,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:25:56,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:25:56,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:25:56,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:25:56,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:25:56,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:25:56,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 20:25:56,098 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:25:56,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:25:56,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:25:56,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:25:56,101 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:25:56,101 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:25:56,101 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:25:56,102 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:25:56,102 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:25:56,102 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:25:56,103 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:25:56,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:25:56,103 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:25:56,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:25:56,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:25:56,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:25:56,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:25:56,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:25:56,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:25:56,105 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:25:56,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:25:56,106 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:25:56,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:25:56,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:25:56,106 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:25:56,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:25:56,107 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:25:56,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:25:56,108 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:25:56,109 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:25:56,109 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-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a2bee874d696cf0b3efef86c5a2ac3b6d5e9dca [2020-11-29 20:25:56,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:25:56,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:25:56,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:25:56,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:25:56,566 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:25:56,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i [2020-11-29 20:25:56,670 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/data/5d3ead90f/5faf2907f33947ba993ac2589eaa5fe0/FLAGa08486cf8 [2020-11-29 20:25:57,433 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:25:57,434 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/sv-benchmarks/c/termination-15/cstrspn_diffterm_alloca.i [2020-11-29 20:25:57,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/data/5d3ead90f/5faf2907f33947ba993ac2589eaa5fe0/FLAGa08486cf8 [2020-11-29 20:25:57,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/data/5d3ead90f/5faf2907f33947ba993ac2589eaa5fe0 [2020-11-29 20:25:57,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:25:57,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:25:57,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:25:57,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:25:57,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:25:57,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:25:57" (1/1) ... [2020-11-29 20:25:57,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c13289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:57, skipping insertion in model container [2020-11-29 20:25:57,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:25:57" (1/1) ... [2020-11-29 20:25:57,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:25:57,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:25:58,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:25:58,305 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:25:58,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:25:58,500 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:25:58,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58 WrapperNode [2020-11-29 20:25:58,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:25:58,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:25:58,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:25:58,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:25:58,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:25:58,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:25:58,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:25:58,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:25:58,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... [2020-11-29 20:25:58,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:25:58,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:25:58,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:25:58,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:25:58,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:25:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:25:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:25:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:25:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:25:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:25:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:25:59,235 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:25:59,236 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 20:25:59,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:59 BoogieIcfgContainer [2020-11-29 20:25:59,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:25:59,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:25:59,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:25:59,245 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:25:59,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:59,247 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:25:57" (1/3) ... [2020-11-29 20:25:59,249 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ca8f580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:25:59, skipping insertion in model container [2020-11-29 20:25:59,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:59,249 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:25:58" (2/3) ... [2020-11-29 20:25:59,250 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ca8f580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:25:59, skipping insertion in model container [2020-11-29 20:25:59,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:25:59,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:59" (3/3) ... [2020-11-29 20:25:59,252 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrspn_diffterm_alloca.i [2020-11-29 20:25:59,363 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:25:59,364 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:25:59,364 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:25:59,371 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:25:59,371 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:25:59,372 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:25:59,372 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:25:59,372 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:25:59,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-29 20:25:59,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 20:25:59,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:25:59,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:25:59,428 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:25:59,429 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:25:59,429 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:25:59,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-29 20:25:59,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 20:25:59,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:25:59,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:25:59,435 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:25:59,435 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:25:59,445 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 11#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 9#L385-1true call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 6#L369-4true [2020-11-29 20:25:59,447 INFO L796 eck$LassoCheckResult]: Loop: 6#L369-4true call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 18#L369-1true assume !!(49 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 20#L372-5true assume !true; 4#L372-6true call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 8#L374true assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 5#L369-3true cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 6#L369-4true [2020-11-29 20:25:59,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:59,467 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-29 20:25:59,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:59,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624101006] [2020-11-29 20:25:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:59,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:59,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:25:59,804 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:25:59,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:59,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2020-11-29 20:25:59,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:59,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095361318] [2020-11-29 20:25:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:25:59,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:25:59,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095361318] [2020-11-29 20:25:59,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:25:59,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:25:59,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786215234] [2020-11-29 20:25:59,886 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 20:25:59,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:25:59,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:25:59,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:25:59,911 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-29 20:25:59,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:25:59,920 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-29 20:25:59,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:25:59,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2020-11-29 20:25:59,924 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 20:25:59,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2020-11-29 20:25:59,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-29 20:25:59,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2020-11-29 20:25:59,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2020-11-29 20:25:59,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:25:59,933 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 20:25:59,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2020-11-29 20:25:59,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-29 20:25:59,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 20:25:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-11-29 20:25:59,968 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 20:25:59,969 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-11-29 20:25:59,969 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:25:59,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-11-29 20:25:59,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-29 20:25:59,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:25:59,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:25:59,971 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 20:25:59,971 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:25:59,971 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 50#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 51#L382 assume !(main_~length1~0 < 1); 52#L382-2 assume !(main_~length2~0 < 1); 49#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 47#L369-4 [2020-11-29 20:25:59,972 INFO L796 eck$LassoCheckResult]: Loop: 47#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 48#L369-1 assume !!(49 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 56#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 49 != cstrspn_#t~mem208; 53#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 54#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208; 44#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 45#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 46#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 47#L369-4 [2020-11-29 20:25:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:25:59,972 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2020-11-29 20:25:59,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:25:59,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356168932] [2020-11-29 20:25:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:25:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:25:59,996 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:00,065 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:00,073 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:00,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2020-11-29 20:26:00,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:00,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005175885] [2020-11-29 20:26:00,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:00,108 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:00,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:00,156 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:00,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:00,162 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2020-11-29 20:26:00,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:00,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632762990] [2020-11-29 20:26:00,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:00,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:00,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:00,306 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:00,631 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2020-11-29 20:26:01,273 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2020-11-29 20:26:01,453 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-29 20:26:01,470 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:26:01,471 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:26:01,471 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:26:01,471 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:26:01,471 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:26:01,472 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:01,472 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:26:01,472 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:26:01,472 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_diffterm_alloca.i_Iteration2_Lasso [2020-11-29 20:26:01,472 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:26:01,473 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:26:01,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:01,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:01,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:01,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:01,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:01,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,015 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2020-11-29 20:26:02,278 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-11-29 20:26:02,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:02,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:03,469 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-11-29 20:26:03,514 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:26:03,520 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:03,547 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 [2020-11-29 20:26:03,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:03,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:03,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:03,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:03,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:03,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:03,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:03,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:03,623 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 [2020-11-29 20:26:03,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:03,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:03,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:03,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:03,637 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:03,637 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:03,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:03,674 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 [2020-11-29 20:26:03,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:03,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:03,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:03,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:03,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:03,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:03,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:03,686 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:03,717 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 [2020-11-29 20:26:03,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:03,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:03,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:03,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:03,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:03,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:03,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:03,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:03,764 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 [2020-11-29 20:26:03,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:03,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:03,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:03,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:03,772 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:03,772 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:03,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:03,808 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 [2020-11-29 20:26:03,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:03,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:03,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:03,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:03,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:03,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:03,855 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:04,150 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-11-29 20:26:04,150 INFO L444 ModelExtractionUtils]: 6 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:04,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:04,169 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 20:26:04,169 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:04,170 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~sc1~0.offset, ULTIMATE.start_main_~length1~0) = -1*ULTIMATE.start_cstrspn_~sc1~0.offset + 1*ULTIMATE.start_main_~length1~0 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrspn_~sc1~0.base)_1 + 1*ULTIMATE.start_main_~length1~0 >= 0] [2020-11-29 20:26:04,304 INFO L297 tatePredicateManager]: 9 out of 10 supporting invariants were superfluous and have been removed [2020-11-29 20:26:04,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:04,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 20:26:04,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:04,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:26:04,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:04,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:04,642 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 20:26:04,647 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-29 20:26:04,765 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2020-11-29 20:26:04,768 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 [2020-11-29 20:26:04,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:26:04,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2020-11-29 20:26:04,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2020-11-29 20:26:04,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:04,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2020-11-29 20:26:04,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:04,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2020-11-29 20:26:04,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:04,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2020-11-29 20:26:04,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 20:26:04,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2020-11-29 20:26:04,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-11-29 20:26:04,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-29 20:26:04,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2020-11-29 20:26:04,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:04,790 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-29 20:26:04,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2020-11-29 20:26:04,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-29 20:26:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 20:26:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-11-29 20:26:04,795 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-29 20:26:04,795 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-29 20:26:04,795 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:26:04,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2020-11-29 20:26:04,798 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 20:26:04,800 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:04,800 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:04,801 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:04,802 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 20:26:04,802 INFO L794 eck$LassoCheckResult]: Stem: 197#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 190#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 191#L382 assume !(main_~length1~0 < 1); 192#L382-2 assume !(main_~length2~0 < 1); 189#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 186#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 188#L369-1 assume !!(49 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 198#L372-5 [2020-11-29 20:26:04,808 INFO L796 eck$LassoCheckResult]: Loop: 198#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 49 != cstrspn_#t~mem208; 193#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 194#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, 1 + cstrspn_#t~post211.offset;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 198#L372-5 [2020-11-29 20:26:04,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:04,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2020-11-29 20:26:04,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:04,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534004613] [2020-11-29 20:26:04,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,899 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,905 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:04,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:04,909 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2020-11-29 20:26:04,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:04,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724597506] [2020-11-29 20:26:04,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,935 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:04,949 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:04,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:04,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2020-11-29 20:26:04,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:04,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786525434] [2020-11-29 20:26:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:04,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:05,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:05,013 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:05,159 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2020-11-29 20:26:05,851 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 99 [2020-11-29 20:26:06,104 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-29 20:26:06,107 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:26:06,108 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:26:06,108 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:26:06,108 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:26:06,108 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:26:06,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:06,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:26:06,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:26:06,109 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_diffterm_alloca.i_Iteration3_Lasso [2020-11-29 20:26:06,109 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:26:06,109 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:26:06,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:06,736 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2020-11-29 20:26:06,941 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-29 20:26:07,789 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2020-11-29 20:26:07,842 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:26:07,842 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:07,862 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 [2020-11-29 20:26:07,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,864 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:07,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:07,923 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 [2020-11-29 20:26:07,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:07,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:07,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:07,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:07,928 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:07,928 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:07,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:07,997 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 [2020-11-29 20:26:07,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:07,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:08,036 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 [2020-11-29 20:26:08,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,041 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:08,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:08,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:08,075 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 [2020-11-29 20:26:08,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:08,111 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 [2020-11-29 20:26:08,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,123 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:08,153 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 [2020-11-29 20:26:08,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:08,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:08,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,195 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 [2020-11-29 20:26:08,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:08,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:08,206 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,238 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 [2020-11-29 20:26:08,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,243 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,274 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 [2020-11-29 20:26:08,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/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 [2020-11-29 20:26:08,313 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 [2020-11-29 20:26:08,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,350 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 [2020-11-29 20:26:08,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,385 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 [2020-11-29 20:26:08,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,420 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 [2020-11-29 20:26:08,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,424 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,429 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,460 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 [2020-11-29 20:26:08,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,464 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:08,494 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 [2020-11-29 20:26:08,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,530 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 [2020-11-29 20:26:08,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,534 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:08,562 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 Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:08,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:08,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:08,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,595 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 [2020-11-29 20:26:08,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:08,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:08,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:08,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:08,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:08,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:08,641 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:08,663 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 20:26:08,664 INFO L444 ModelExtractionUtils]: 20 out of 28 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:08,667 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:08,669 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:26:08,670 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:08,670 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrspn_~s~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2) = -1*ULTIMATE.start_cstrspn_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_2 Supporting invariants [] [2020-11-29 20:26:08,751 INFO L297 tatePredicateManager]: 14 out of 15 supporting invariants were superfluous and have been removed [2020-11-29 20:26:08,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:26:08,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:08,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 20:26:08,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:08,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:26:08,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:08,882 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 20:26:08,882 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 4 states. [2020-11-29 20:26:08,992 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 43 states and 57 transitions. Complement of second has 6 states. [2020-11-29 20:26:08,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:08,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-29 20:26:08,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2020-11-29 20:26:08,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:08,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2020-11-29 20:26:08,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:08,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2020-11-29 20:26:08,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:08,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2020-11-29 20:26:08,999 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 20:26:09,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2020-11-29 20:26:09,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 20:26:09,000 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 20:26:09,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2020-11-29 20:26:09,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:09,000 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-29 20:26:09,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2020-11-29 20:26:09,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-11-29 20:26:09,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-29 20:26:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2020-11-29 20:26:09,010 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-11-29 20:26:09,010 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2020-11-29 20:26:09,010 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 20:26:09,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2020-11-29 20:26:09,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 20:26:09,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:09,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:09,016 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:09,016 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 20:26:09,016 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 371#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 372#L382 assume !(main_~length1~0 < 1); 373#L382-2 assume !(main_~length2~0 < 1); 370#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 366#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 367#L369-1 assume !!(49 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 380#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 49 != cstrspn_#t~mem208; 376#L372-1 assume !cstrspn_#t~short210; 377#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208; 362#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 363#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 364#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 365#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 369#L369-1 assume !!(49 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 379#L372-5 [2020-11-29 20:26:09,017 INFO L796 eck$LassoCheckResult]: Loop: 379#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 49 != cstrspn_#t~mem208; 374#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 375#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, 1 + cstrspn_#t~post211.offset;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 379#L372-5 [2020-11-29 20:26:09,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:09,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2020-11-29 20:26:09,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:09,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981746248] [2020-11-29 20:26:09,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:09,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:09,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981746248] [2020-11-29 20:26:09,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:26:09,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 20:26:09,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061998133] [2020-11-29 20:26:09,125 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:26:09,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:09,126 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2020-11-29 20:26:09,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:09,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064222904] [2020-11-29 20:26:09,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:09,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:09,251 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2020-11-29 20:26:09,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:26:09,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 20:26:09,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:26:09,308 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 7 states. [2020-11-29 20:26:09,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:26:09,471 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-11-29 20:26:09,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 20:26:09,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 39 transitions. [2020-11-29 20:26:09,474 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 20:26:09,475 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 27 states and 35 transitions. [2020-11-29 20:26:09,475 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-29 20:26:09,475 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-29 20:26:09,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2020-11-29 20:26:09,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:26:09,475 INFO L691 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2020-11-29 20:26:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2020-11-29 20:26:09,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-11-29 20:26:09,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 20:26:09,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 33 transitions. [2020-11-29 20:26:09,479 INFO L714 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-11-29 20:26:09,479 INFO L594 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2020-11-29 20:26:09,479 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 20:26:09,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 33 transitions. [2020-11-29 20:26:09,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 20:26:09,480 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:26:09,480 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:26:09,481 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:26:09,481 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 20:26:09,482 INFO L794 eck$LassoCheckResult]: Stem: 446#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 443#L-1 havoc main_#res;havoc main_#t~nondet213, main_#t~nondet214, main_#t~malloc215.base, main_#t~malloc215.offset, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~ret217, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet213;havoc main_#t~nondet213;main_~length2~0 := main_#t~nondet214;havoc main_#t~nondet214; 444#L382 assume !(main_~length1~0 < 1); 445#L382-2 assume !(main_~length2~0 < 1); 442#L385-1 call main_#t~malloc215.base, main_#t~malloc215.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc215.base, main_#t~malloc215.offset;call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call write~int(49, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(49, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrspn_#in~s1.base, cstrspn_#in~s1.offset, cstrspn_#in~s2.base, cstrspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrspn_#res;havoc cstrspn_#t~mem207, cstrspn_#t~post211.base, cstrspn_#t~post211.offset, cstrspn_#t~mem208, cstrspn_#t~mem209, cstrspn_#t~short210, cstrspn_#t~mem212, cstrspn_#t~post205.base, cstrspn_#t~post205.offset, cstrspn_#t~mem206, cstrspn_~s1.base, cstrspn_~s1.offset, cstrspn_~s2.base, cstrspn_~s2.offset, cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, cstrspn_~s~0.base, cstrspn_~s~0.offset, cstrspn_~c~0;cstrspn_~s1.base, cstrspn_~s1.offset := cstrspn_#in~s1.base, cstrspn_#in~s1.offset;cstrspn_~s2.base, cstrspn_~s2.offset := cstrspn_#in~s2.base, cstrspn_#in~s2.offset;havoc cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;havoc cstrspn_~s~0.base, cstrspn_~s~0.offset;havoc cstrspn_~c~0;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_~s1.base, cstrspn_~s1.offset; 438#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 439#L369-1 assume !!(49 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 452#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 49 != cstrspn_#t~mem208; 456#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 455#L372-3 assume !cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208; 434#L372-6 call cstrspn_#t~mem212 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1); 435#L374 assume !(cstrspn_#t~mem212 != cstrspn_~c~0);havoc cstrspn_#t~mem212; 436#L369-3 cstrspn_#t~post205.base, cstrspn_#t~post205.offset := cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset;cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset := cstrspn_#t~post205.base, 1 + cstrspn_#t~post205.offset;havoc cstrspn_#t~post205.base, cstrspn_#t~post205.offset; 437#L369-4 call cstrspn_#t~mem206 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1); 441#L369-1 assume !!(49 != cstrspn_#t~mem206);havoc cstrspn_#t~mem206;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_~s2.base, cstrspn_~s2.offset;call cstrspn_#t~mem207 := read~int(cstrspn_~sc1~0.base, cstrspn_~sc1~0.offset, 1);cstrspn_~c~0 := cstrspn_#t~mem207;havoc cstrspn_#t~mem207; 451#L372-5 [2020-11-29 20:26:09,482 INFO L796 eck$LassoCheckResult]: Loop: 451#L372-5 call cstrspn_#t~mem208 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := 49 != cstrspn_#t~mem208; 447#L372-1 assume cstrspn_#t~short210;call cstrspn_#t~mem209 := read~int(cstrspn_~s~0.base, cstrspn_~s~0.offset, 1);cstrspn_#t~short210 := cstrspn_#t~mem209 != (if cstrspn_~c~0 % 256 <= 127 then cstrspn_~c~0 % 256 else cstrspn_~c~0 % 256 - 256); 448#L372-3 assume !!cstrspn_#t~short210;havoc cstrspn_#t~mem209;havoc cstrspn_#t~short210;havoc cstrspn_#t~mem208;cstrspn_#t~post211.base, cstrspn_#t~post211.offset := cstrspn_~s~0.base, cstrspn_~s~0.offset;cstrspn_~s~0.base, cstrspn_~s~0.offset := cstrspn_#t~post211.base, 1 + cstrspn_#t~post211.offset;havoc cstrspn_#t~post211.base, cstrspn_#t~post211.offset; 451#L372-5 [2020-11-29 20:26:09,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:09,483 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2020-11-29 20:26:09,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:09,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276283076] [2020-11-29 20:26:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,530 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,543 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:09,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:09,545 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2020-11-29 20:26:09,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:09,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10025973] [2020-11-29 20:26:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,558 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:09,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2020-11-29 20:26:09,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:26:09,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176452387] [2020-11-29 20:26:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:26:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:26:09,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:26:09,657 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:26:09,788 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2020-11-29 20:26:10,844 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 177 DAG size of output: 137 [2020-11-29 20:26:11,153 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-11-29 20:26:11,156 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:26:11,156 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:26:11,156 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:26:11,156 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:26:11,157 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:26:11,157 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:11,157 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:26:11,157 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:26:11,157 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrspn_diffterm_alloca.i_Iteration5_Lasso [2020-11-29 20:26:11,157 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:26:11,157 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:26:11,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:11,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:12,780 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2020-11-29 20:26:13,081 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-11-29 20:26:13,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:13,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:13,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:13,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:13,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:13,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:26:13,427 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-29 20:26:13,633 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2020-11-29 20:26:14,402 WARN L193 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2020-11-29 20:26:14,778 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2020-11-29 20:26:14,936 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:26:14,937 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:14,944 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 [2020-11-29 20:26:14,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:14,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:14,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:14,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:14,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:14,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:14,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:14,948 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:14,995 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 [2020-11-29 20:26:14,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:14,997 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:14,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:14,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:14,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:14,998 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:14,998 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:14,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,032 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 [2020-11-29 20:26:15,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,036 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:15,036 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:15,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:15,096 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 [2020-11-29 20:26:15,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:15,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:15,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:15,138 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 Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:15,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:15,142 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:15,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,185 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 [2020-11-29 20:26:15,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:15,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:15,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:15,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,225 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 [2020-11-29 20:26:15,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,226 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:15,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,227 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:15,227 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:15,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:15,266 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 [2020-11-29 20:26:15,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,268 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:15,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,269 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:15,269 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:15,271 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,302 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 [2020-11-29 20:26:15,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:15,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:15,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:15,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,336 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 [2020-11-29 20:26:15,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:15,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:15,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,397 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 [2020-11-29 20:26:15,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:26:15,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:26:15,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:26:15,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:15,463 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 [2020-11-29 20:26:15,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,498 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:15,498 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:15,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:15,570 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 [2020-11-29 20:26:15,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:15,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:15,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:15,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:15,580 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:15,639 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 [2020-11-29 20:26:15,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:15,642 INFO L203 nArgumentSynthesizer]: 6 stem disjuncts [2020-11-29 20:26:15,642 INFO L204 nArgumentSynthesizer]: 7 loop disjuncts [2020-11-29 20:26:15,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:15,858 INFO L401 nArgumentSynthesizer]: We have 196 Motzkin's Theorem applications. [2020-11-29 20:26:15,858 INFO L402 nArgumentSynthesizer]: A total of 14 supporting invariants were added. [2020-11-29 20:26:16,237 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:26:16,294 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 Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:26:16,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:26:16,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:26:16,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:26:16,334 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:26:16,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:26:16,354 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:26:16,402 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 20:26:16,402 INFO L444 ModelExtractionUtils]: 31 out of 52 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d16442a8-72a3-4c07-8b8d-32e04e4d7062/bin/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:26:16,405 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:26:16,408 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:26:16,408 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:26:16,408 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3, ULTIMATE.start_cstrspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc216.base)_3 - 1*ULTIMATE.start_cstrspn_~s~0.offset Supporting invariants [] [2020-11-29 20:26:16,621 INFO L297 tatePredicateManager]: 30 out of 31 supporting invariants were superfluous and have been removed [2020-11-29 20:26:16,624 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:26:16,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:16,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 20:26:16,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:16,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:26:16,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:16,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:16,743 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 20:26:16,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-29 20:26:16,875 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2020-11-29 20:26:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-29 20:26:16,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-29 20:26:16,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:16,880 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 20:26:16,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:16,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:16,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 20:26:16,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:17,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:26:17,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:17,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:17,076 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 20:26:17,076 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-29 20:26:17,147 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 51 transitions. Complement of second has 6 states. [2020-11-29 20:26:17,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:17,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-11-29 20:26:17,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-29 20:26:17,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:17,154 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 20:26:17,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:26:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:17,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 20:26:17,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:26:17,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:26:17,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:26:17,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:26:17,320 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 20:26:17,320 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11 Second operand 4 states. [2020-11-29 20:26:17,413 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 33 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 41 states and 53 transitions. Complement of second has 5 states. [2020-11-29 20:26:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 20:26:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:26:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-11-29 20:26:17,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2020-11-29 20:26:17,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:17,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2020-11-29 20:26:17,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:17,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2020-11-29 20:26:17,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:26:17,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 53 transitions. [2020-11-29 20:26:17,421 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:26:17,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 0 states and 0 transitions. [2020-11-29 20:26:17,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:26:17,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:26:17,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:26:17,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:26:17,429 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:26:17,429 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:26:17,429 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:26:17,430 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 20:26:17,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:26:17,430 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:26:17,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:26:17,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:26:17 BoogieIcfgContainer [2020-11-29 20:26:17,439 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:26:17,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:26:17,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:26:17,441 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:26:17,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:25:59" (3/4) ... [2020-11-29 20:26:17,446 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:26:17,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:26:17,448 INFO L168 Benchmark]: Toolchain (without parser) took 19757.89 ms. Allocated memory was 115.3 MB in the beginning and 243.3 MB in the end (delta: 127.9 MB). Free memory was 83.6 MB in the beginning and 138.6 MB in the end (delta: -55.1 MB). Peak memory consumption was 72.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:17,448 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 75.5 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:17,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 809.15 ms. Allocated memory is still 115.3 MB. Free memory was 83.2 MB in the beginning and 74.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:17,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.63 ms. Allocated memory is still 115.3 MB. Free memory was 74.8 MB in the beginning and 72.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:17,452 INFO L168 Benchmark]: Boogie Preprocessor took 56.12 ms. Allocated memory is still 115.3 MB. Free memory was 72.7 MB in the beginning and 71.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:17,453 INFO L168 Benchmark]: RCFGBuilder took 599.82 ms. Allocated memory is still 115.3 MB. Free memory was 71.3 MB in the beginning and 55.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:17,457 INFO L168 Benchmark]: BuchiAutomizer took 18200.41 ms. Allocated memory was 115.3 MB in the beginning and 243.3 MB in the end (delta: 127.9 MB). Free memory was 55.3 MB in the beginning and 138.6 MB in the end (delta: -83.4 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:26:17,458 INFO L168 Benchmark]: Witness Printer took 5.70 ms. Allocated memory is still 243.3 MB. Free memory is still 138.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:26:17,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 75.5 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 809.15 ms. Allocated memory is still 115.3 MB. Free memory was 83.2 MB in the beginning and 74.8 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.63 ms. Allocated memory is still 115.3 MB. Free memory was 74.8 MB in the beginning and 72.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.12 ms. Allocated memory is still 115.3 MB. Free memory was 72.7 MB in the beginning and 71.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 599.82 ms. Allocated memory is still 115.3 MB. Free memory was 71.3 MB in the beginning and 55.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 18200.41 ms. Allocated memory was 115.3 MB in the beginning and 243.3 MB in the end (delta: 127.9 MB). Free memory was 55.3 MB in the beginning and 138.6 MB in the end (delta: -83.4 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.70 ms. Allocated memory is still 243.3 MB. Free memory is still 138.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * sc1 + length1 and consists of 3 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length2 * sizeof(char))] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 18.1s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 16.1s. Construction of modules took 0.3s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 105 SDtfs, 139 SDslu, 72 SDs, 0 SdLazy, 102 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital270 mio100 ax100 hnf99 lsp106 ukn82 mio100 lsp28 div142 bol100 ite100 ukn100 eq156 hnf76 smp91 dnf769 smp31 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 599ms VariablesStem: 7 VariablesLoop: 4 DisjunctsStem: 6 DisjunctsLoop: 7 SupportingInvariants: 14 MotzkinApplications: 196 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...