./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-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_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 30ab881e1a71a9d76a9921c34ce47cc9425d2331 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:20:39,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:39,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:39,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:39,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:39,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:39,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:39,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:39,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:39,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:39,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:39,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:39,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:39,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:39,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:39,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:39,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:39,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:40,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:40,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:40,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:40,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:40,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:40,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:40,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:40,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:40,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:40,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:40,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:40,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:40,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:40,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:40,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:40,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:40,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:40,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:40,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:40,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:40,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:40,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:40,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:40,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:20:40,062 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:40,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:40,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:40,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:40,065 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:40,065 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:20:40,066 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:20:40,066 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:20:40,066 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:20:40,067 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:20:40,067 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:20:40,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:40,068 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:20:40,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:40,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:40,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:20:40,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:20:40,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:20:40,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:40,070 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:20:40,070 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:40,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:20:40,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:40,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:40,071 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:20:40,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:40,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:40,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:40,072 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:20:40,073 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:20:40,074 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_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30ab881e1a71a9d76a9921c34ce47cc9425d2331 [2020-11-28 03:20:40,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:40,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:40,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:40,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:40,416 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:40,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i [2020-11-28 03:20:40,535 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/data/736310d68/459ccd247e404cb095e3340cddfb35d9/FLAG282b4977e [2020-11-28 03:20:41,161 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:41,163 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/sv-benchmarks/c/termination-memory-alloca/CookSeeZuleger-2013TACAS-Fig3-alloca.i [2020-11-28 03:20:41,180 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/data/736310d68/459ccd247e404cb095e3340cddfb35d9/FLAG282b4977e [2020-11-28 03:20:41,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/data/736310d68/459ccd247e404cb095e3340cddfb35d9 [2020-11-28 03:20:41,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:41,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:41,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:41,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:41,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:41,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:41" (1/1) ... [2020-11-28 03:20:41,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432b6bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:41, skipping insertion in model container [2020-11-28 03:20:41,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:41" (1/1) ... [2020-11-28 03:20:41,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:41,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:41,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:41,882 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:41,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:42,030 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:42,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42 WrapperNode [2020-11-28 03:20:42,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:42,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:42,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:42,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:42,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:42,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:42,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:42,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:42,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... [2020-11-28 03:20:42,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:42,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:42,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:42,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:42,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:20:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:20:42,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:20:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:20:42,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:42,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:42,724 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:42,725 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:20:42,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:42 BoogieIcfgContainer [2020-11-28 03:20:42,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:42,728 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:20:42,729 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:20:42,735 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:20:42,736 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:42,736 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:20:41" (1/3) ... [2020-11-28 03:20:42,738 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16a585e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:20:42, skipping insertion in model container [2020-11-28 03:20:42,739 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:42,739 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:42" (2/3) ... [2020-11-28 03:20:42,739 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16a585e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:20:42, skipping insertion in model container [2020-11-28 03:20:42,740 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:42,740 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:42" (3/3) ... [2020-11-28 03:20:42,742 INFO L373 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-2013TACAS-Fig3-alloca.i [2020-11-28 03:20:42,810 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:20:42,811 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:20:42,811 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:20:42,811 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:42,811 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:42,812 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:20:42,812 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:42,812 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:20:42,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-28 03:20:42,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:42,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:42,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:42,859 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:20:42,860 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:20:42,860 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:20:42,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-11-28 03:20:42,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:42,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:42,862 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:42,863 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:20:42,863 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:20:42,871 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 11#L551-2true [2020-11-28 03:20:42,872 INFO L796 eck$LassoCheckResult]: Loop: 11#L551-2true call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 12#L550-1true assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 6#L550-3true assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 7#L551true assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 11#L551-2true [2020-11-28 03:20:42,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:42,881 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 03:20:42,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:42,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094912165] [2020-11-28 03:20:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:43,045 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:43,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:43,112 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:43,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 1 times [2020-11-28 03:20:43,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:43,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079874860] [2020-11-28 03:20:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:43,154 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:43,183 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:43,191 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:43,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:43,195 INFO L82 PathProgramCache]: Analyzing trace with hash 889569449, now seen corresponding path program 1 times [2020-11-28 03:20:43,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:43,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590296336] [2020-11-28 03:20:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:43,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:43,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:43,315 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:43,555 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-11-28 03:20:43,790 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-11-28 03:20:43,888 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:20:43,889 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:20:43,889 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:20:43,890 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:20:43,890 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:20:43,890 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:43,890 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:20:43,890 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:20:43,891 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration1_Lasso [2020-11-28 03:20:43,891 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:20:43,891 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:20:43,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:43,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:43,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,177 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-28 03:20:44,321 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-11-28 03:20:44,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:44,976 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:20:44,980 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:44,989 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:44,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:44,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:44,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:44,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:44,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:45,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:45,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:45,006 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:45,051 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 [2020-11-28 03:20:45,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:45,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:45,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:45,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:45,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:45,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:45,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:45,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:45,117 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 [2020-11-28 03:20:45,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:45,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:45,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:45,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:45,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:45,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:45,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:45,217 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 [2020-11-28 03:20:45,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:45,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:45,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:45,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:45,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:45,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:45,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:45,297 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:45,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:45,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:45,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:45,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:45,314 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:45,314 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:45,340 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:45,375 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 [2020-11-28 03:20:45,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:45,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:45,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:45,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:45,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:45,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:45,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:45,388 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:20:45,430 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:20:45,430 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:45,443 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:20:45,444 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:20:45,444 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:20:45,445 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_1 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:45,619 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-28 03:20:45,627 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:20:45,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:45,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:45,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:20:45,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:45,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:45,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:45,768 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:20:45,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:45,930 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:20:45,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2020-11-28 03:20:46,036 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 40 states and 48 transitions. Complement of second has 10 states. [2020-11-28 03:20:46,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-28 03:20:46,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:20:46,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2020-11-28 03:20:46,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-28 03:20:46,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:46,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:20:46,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:46,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2020-11-28 03:20:46,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:46,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 48 transitions. [2020-11-28 03:20:46,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:46,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 16 states and 22 transitions. [2020-11-28 03:20:46,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 03:20:46,063 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 03:20:46,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2020-11-28 03:20:46,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:20:46,065 INFO L691 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2020-11-28 03:20:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2020-11-28 03:20:46,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2020-11-28 03:20:46,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-28 03:20:46,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 20 transitions. [2020-11-28 03:20:46,098 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2020-11-28 03:20:46,099 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 20 transitions. [2020-11-28 03:20:46,101 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:20:46,101 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 20 transitions. [2020-11-28 03:20:46,104 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:46,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:46,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:46,105 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:20:46,105 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:20:46,106 INFO L794 eck$LassoCheckResult]: Stem: 150#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 144#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 145#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 153#L550-1 assume !main_#t~short6; 146#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 147#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 151#L551-2 [2020-11-28 03:20:46,106 INFO L796 eck$LassoCheckResult]: Loop: 151#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 155#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 157#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 156#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 151#L551-2 [2020-11-28 03:20:46,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:46,107 INFO L82 PathProgramCache]: Analyzing trace with hash 889571373, now seen corresponding path program 1 times [2020-11-28 03:20:46,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:46,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003496376] [2020-11-28 03:20:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:46,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:46,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003496376] [2020-11-28 03:20:46,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:46,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:20:46,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014734867] [2020-11-28 03:20:46,185 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:20:46,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:46,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 2 times [2020-11-28 03:20:46,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:46,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476947791] [2020-11-28 03:20:46,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,228 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:46,359 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-11-28 03:20:46,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:46,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:46,405 INFO L87 Difference]: Start difference. First operand 14 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-28 03:20:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:46,421 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2020-11-28 03:20:46,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:46,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2020-11-28 03:20:46,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:46,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 03:20:46,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 03:20:46,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-11-28 03:20:46,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2020-11-28 03:20:46,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:20:46,424 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-11-28 03:20:46,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2020-11-28 03:20:46,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-28 03:20:46,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-28 03:20:46,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2020-11-28 03:20:46,427 INFO L714 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-11-28 03:20:46,427 INFO L594 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-11-28 03:20:46,427 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:20:46,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2020-11-28 03:20:46,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:46,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:46,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:46,428 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:20:46,428 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:20:46,429 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 181#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 182#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 191#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 184#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 185#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 188#L551-2 [2020-11-28 03:20:46,429 INFO L796 eck$LassoCheckResult]: Loop: 188#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 190#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 194#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 193#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 188#L551-2 [2020-11-28 03:20:46,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:46,429 INFO L82 PathProgramCache]: Analyzing trace with hash 889569451, now seen corresponding path program 1 times [2020-11-28 03:20:46,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:46,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289070774] [2020-11-28 03:20:46,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,449 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,477 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:46,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:46,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 3 times [2020-11-28 03:20:46,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:46,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40304801] [2020-11-28 03:20:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,520 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:46,520 INFO L82 PathProgramCache]: Analyzing trace with hash -980235887, now seen corresponding path program 1 times [2020-11-28 03:20:46,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:46,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732900310] [2020-11-28 03:20:46,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:46,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:46,563 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:46,707 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-11-28 03:20:47,120 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 72 [2020-11-28 03:20:47,246 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-28 03:20:47,250 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:20:47,250 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:20:47,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:20:47,251 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:20:47,251 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:20:47,251 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:47,251 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:20:47,251 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:20:47,251 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration3_Lasso [2020-11-28 03:20:47,251 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:20:47,251 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:20:47,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,271 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,569 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-11-28 03:20:47,686 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-11-28 03:20:47,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:47,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:48,230 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:20:48,231 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:48,241 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 [2020-11-28 03:20:48,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:48,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:48,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:48,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,273 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 [2020-11-28 03:20:48,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:48,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:48,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:48,284 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,345 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 [2020-11-28 03:20:48,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:48,416 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 [2020-11-28 03:20:48,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:48,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:48,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:48,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,456 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 [2020-11-28 03:20:48,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:48,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:48,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:48,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,493 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 [2020-11-28 03:20:48,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:48,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:48,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:48,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,527 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 [2020-11-28 03:20:48,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,531 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,569 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 [2020-11-28 03:20:48,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:48,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,571 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:20:48,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,572 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:20:48,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:48,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,611 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 [2020-11-28 03:20:48,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,629 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:48,685 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 [2020-11-28 03:20:48,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:48,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:48,744 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:48,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,793 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 [2020-11-28 03:20:48,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,824 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,859 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 [2020-11-28 03:20:48,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:48,905 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 [2020-11-28 03:20:48,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:48,960 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:48,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:48,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:48,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:48,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:48,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:48,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:48,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:20:48,977 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-28 03:20:48,977 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:48,990 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:48,994 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:20:48,994 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:20:48,994 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_2 Supporting invariants [] [2020-11-28 03:20:49,084 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-28 03:20:49,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:20:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:49,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:20:49,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:49,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:49,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:49,167 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:20:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:49,221 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:20:49,221 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-28 03:20:49,257 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 22 states and 27 transitions. Complement of second has 7 states. [2020-11-28 03:20:49,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:20:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:20:49,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-11-28 03:20:49,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:20:49,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:49,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-28 03:20:49,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:49,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 8 letters. [2020-11-28 03:20:49,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:49,262 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2020-11-28 03:20:49,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:49,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 27 transitions. [2020-11-28 03:20:49,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-28 03:20:49,265 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-28 03:20:49,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2020-11-28 03:20:49,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:20:49,265 INFO L691 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-28 03:20:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2020-11-28 03:20:49,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 03:20:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 03:20:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-11-28 03:20:49,268 INFO L714 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-28 03:20:49,268 INFO L594 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-28 03:20:49,268 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:20:49,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2020-11-28 03:20:49,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:20:49,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:49,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:49,270 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2020-11-28 03:20:49,270 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:20:49,271 INFO L794 eck$LassoCheckResult]: Stem: 322#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 316#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 317#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 333#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 332#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 330#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 329#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 327#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 318#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 319#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 323#L551-2 [2020-11-28 03:20:49,271 INFO L796 eck$LassoCheckResult]: Loop: 323#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 325#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 328#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 331#L551 assume 0 != main_#t~nondet7;havoc main_#t~nondet7;call main_#t~mem8 := read~int(main_~x~0.base, main_~x~0.offset, 4);call write~int(main_#t~mem8 - 1, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~mem8; 323#L551-2 [2020-11-28 03:20:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash -980235885, now seen corresponding path program 2 times [2020-11-28 03:20:49,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:49,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365555093] [2020-11-28 03:20:49,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:49,295 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:49,334 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:49,340 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:49,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:49,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1142247, now seen corresponding path program 4 times [2020-11-28 03:20:49,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:49,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910183408] [2020-11-28 03:20:49,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:49,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:49,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:49,376 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:49,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:49,377 INFO L82 PathProgramCache]: Analyzing trace with hash -987685255, now seen corresponding path program 2 times [2020-11-28 03:20:49,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:49,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457803892] [2020-11-28 03:20:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:49,414 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:49,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:49,479 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:49,499 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:49,652 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-11-28 03:20:50,173 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 95 [2020-11-28 03:20:50,315 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-11-28 03:20:50,321 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:20:50,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:20:50,321 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:20:50,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:20:50,321 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:20:50,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:50,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:20:50,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:20:50,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration4_Lasso [2020-11-28 03:20:50,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:20:50,322 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:20:50,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,617 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-11-28 03:20:50,727 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-11-28 03:20:50,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:50,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:51,268 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:20:51,268 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:51,285 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 [2020-11-28 03:20:51,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:51,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:51,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:51,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:51,317 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 [2020-11-28 03:20:51,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:51,356 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:51,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,360 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,360 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:51,391 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 [2020-11-28 03:20:51,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,401 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:51,440 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 [2020-11-28 03:20:51,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:51,482 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 [2020-11-28 03:20:51,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,506 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:51,534 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 [2020-11-28 03:20:51,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:51,577 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:51,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,581 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:51,615 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 [2020-11-28 03:20:51,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,632 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:51,659 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 [2020-11-28 03:20:51,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:51,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:51,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:51,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:51,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:51,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:51,669 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:20:51,679 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-28 03:20:51,679 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:51,683 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:20:51,686 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:20:51,686 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:20:51,686 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0.base) ULTIMATE.start_main_~x~0.offset)_3 Supporting invariants [] [2020-11-28 03:20:51,768 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-28 03:20:51,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:20:51,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:51,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:20:51,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:51,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:51,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:51,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:20:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:51,927 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:20:51,927 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-28 03:20:51,982 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2020-11-28 03:20:51,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:20:51,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:20:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-11-28 03:20:51,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-28 03:20:51,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:51,984 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:20:51,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:52,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:20:52,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:52,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:52,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:52,050 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:20:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:52,094 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:20:52,095 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-28 03:20:52,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2020-11-28 03:20:52,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:20:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:20:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-11-28 03:20:52,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-28 03:20:52,132 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:52,132 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:20:52,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:52,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:20:52,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:52,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:52,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:52,227 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:20:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:52,281 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:20:52,281 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-28 03:20:52,355 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 32 states and 40 transitions. Complement of second has 6 states. [2020-11-28 03:20:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:20:52,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:20:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-11-28 03:20:52,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-28 03:20:52,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:52,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 4 letters. [2020-11-28 03:20:52,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:52,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 10 letters. Loop has 8 letters. [2020-11-28 03:20:52,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:52,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2020-11-28 03:20:52,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-28 03:20:52,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 32 transitions. [2020-11-28 03:20:52,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-11-28 03:20:52,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-28 03:20:52,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2020-11-28 03:20:52,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:20:52,367 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2020-11-28 03:20:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2020-11-28 03:20:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 10. [2020-11-28 03:20:52,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:20:52,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-28 03:20:52,369 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:20:52,369 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:20:52,370 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:20:52,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-11-28 03:20:52,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-11-28 03:20:52,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:52,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:52,371 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:20:52,371 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 03:20:52,371 INFO L794 eck$LassoCheckResult]: Stem: 642#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 640#L-1 havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~nondet7, main_#t~mem8, main_#t~nondet9, main_#t~mem10, main_#t~mem4, main_#t~mem5, main_#t~short6, main_~x~0.base, main_~x~0.offset, main_~y~0.base, main_~y~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~y~0.base, main_~y~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset; 641#L551-2 [2020-11-28 03:20:52,371 INFO L796 eck$LassoCheckResult]: Loop: 641#L551-2 call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4);main_#t~short6 := main_#t~mem4 > 0; 649#L550-1 assume main_#t~short6;call main_#t~mem5 := read~int(main_~y~0.base, main_~y~0.offset, 4);main_#t~short6 := main_#t~mem5 > 0; 643#L550-3 assume !!main_#t~short6;havoc main_#t~mem4;havoc main_#t~mem5;havoc main_#t~short6; 644#L551 assume !(0 != main_#t~nondet7);havoc main_#t~nondet7;call write~int(main_#t~nondet9, main_~x~0.base, main_~x~0.offset, 4);havoc main_#t~nondet9;call main_#t~mem10 := read~int(main_~y~0.base, main_~y~0.offset, 4);call write~int(main_#t~mem10 - 1, main_~y~0.base, main_~y~0.offset, 4);havoc main_#t~mem10; 641#L551-2 [2020-11-28 03:20:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:52,372 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-28 03:20:52,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:52,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826109794] [2020-11-28 03:20:52,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:52,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:52,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:52,400 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:52,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:52,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1142249, now seen corresponding path program 1 times [2020-11-28 03:20:52,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:52,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331994587] [2020-11-28 03:20:52,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:52,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:52,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:52,426 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:52,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:52,427 INFO L82 PathProgramCache]: Analyzing trace with hash 889569451, now seen corresponding path program 3 times [2020-11-28 03:20:52,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:52,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968279499] [2020-11-28 03:20:52,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:52,450 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:52,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:52,462 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:52,639 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-11-28 03:20:52,846 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-11-28 03:20:52,910 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:20:52,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:20:52,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:20:52,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:20:52,910 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:20:52,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:52,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:20:52,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:20:52,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-2013TACAS-Fig3-alloca.i_Iteration5_Lasso [2020-11-28 03:20:52,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:20:52,910 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:20:52,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:52,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:52,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,080 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-28 03:20:53,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:53,606 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:20:53,606 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:53,615 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 [2020-11-28 03:20:53,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:53,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:53,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:53,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:53,647 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 [2020-11-28 03:20:53,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,650 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:53,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:53,654 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:53,681 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 [2020-11-28 03:20:53,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:53,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:53,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:53,718 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 [2020-11-28 03:20:53,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:53,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:53,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:53,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:53,756 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 [2020-11-28 03:20:53,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:53,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:53,784 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) [2020-11-28 03:20:53,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:53,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:53,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:53,854 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:53,881 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 [2020-11-28 03:20:53,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:53,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:53,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:53,915 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 [2020-11-28 03:20:53,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:20:53,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:53,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/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 [2020-11-28 03:20:53,964 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 [2020-11-28 03:20:53,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:53,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:53,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:53,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:53,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:53,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:53,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:53,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:20:53,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:20:53,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10486bfe-cbd0-4019-8c2d-34110aa2bb4f/bin/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:53,975 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:20:53,975 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:20:53,975 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:20:53,975 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~y~0.base) ULTIMATE.start_main_~y~0.offset)_4 Supporting invariants [] [2020-11-28 03:20:54,030 INFO L297 tatePredicateManager]: 10 out of 11 supporting invariants were superfluous and have been removed [2020-11-28 03:20:54,032 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-28 03:20:54,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:54,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:20:54,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:54,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:20:54,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:54,096 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:20:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:54,153 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:20:54,153 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand 5 states. [2020-11-28 03:20:54,217 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 3. Second operand 5 states. Result 26 states and 33 transitions. Complement of second has 8 states. [2020-11-28 03:20:54,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-28 03:20:54,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-28 03:20:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2020-11-28 03:20:54,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-28 03:20:54,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:54,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:20:54,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:54,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 2 letters. Loop has 8 letters. [2020-11-28 03:20:54,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:54,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2020-11-28 03:20:54,220 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:20:54,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2020-11-28 03:20:54,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:20:54,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:20:54,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:20:54,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:20:54,221 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:54,221 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:54,221 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:54,221 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 03:20:54,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:20:54,222 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:20:54,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:20:54,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:20:54 BoogieIcfgContainer [2020-11-28 03:20:54,228 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:20:54,229 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:54,229 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:54,229 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:54,230 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:42" (3/4) ... [2020-11-28 03:20:54,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:20:54,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:54,235 INFO L168 Benchmark]: Toolchain (without parser) took 12804.23 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 69.1 MB in the beginning and 60.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 95.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,236 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:54,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.68 ms. Allocated memory is still 100.7 MB. Free memory was 68.9 MB in the beginning and 68.5 MB in the end (delta: 404.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.41 ms. Allocated memory is still 100.7 MB. Free memory was 68.5 MB in the beginning and 66.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,238 INFO L168 Benchmark]: Boogie Preprocessor took 29.89 ms. Allocated memory is still 100.7 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,239 INFO L168 Benchmark]: RCFGBuilder took 594.71 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 52.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,240 INFO L168 Benchmark]: BuchiAutomizer took 11499.98 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 52.7 MB in the beginning and 60.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:54,240 INFO L168 Benchmark]: Witness Printer took 5.59 ms. Allocated memory is still 186.6 MB. Free memory is still 60.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:54,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 600.68 ms. Allocated memory is still 100.7 MB. Free memory was 68.9 MB in the beginning and 68.5 MB in the end (delta: 404.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.41 ms. Allocated memory is still 100.7 MB. Free memory was 68.5 MB in the beginning and 66.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.89 ms. Allocated memory is still 100.7 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 594.71 ms. Allocated memory is still 100.7 MB. Free memory was 65.8 MB in the beginning and 52.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 11499.98 ms. Allocated memory was 100.7 MB in the beginning and 186.6 MB in the end (delta: 86.0 MB). Free memory was 52.7 MB in the beginning and 60.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 80.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.59 ms. Allocated memory is still 186.6 MB. Free memory is still 60.0 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 6 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 4 locations. One deterministic module has affine ranking function unknown-#memory_int-unknown[y][y] and consists of 5 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[x][x] and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 11.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 9.8s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 50 SDtfs, 47 SDslu, 18 SDs, 0 SdLazy, 74 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital247 mio100 ax109 hnf100 lsp86 ukn60 mio100 lsp40 div100 bol100 ite100 ukn100 eq189 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 8 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...