./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/cstrncat-alloca-1.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_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/cstrncat-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 0131b237d1353fa18fec727a7424c78c2056aaff ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:59:05,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:06,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:06,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:06,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:06,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:06,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:06,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:06,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:06,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:06,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:06,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:06,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:06,086 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:06,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:06,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:06,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:06,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:06,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:06,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:06,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:06,103 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:06,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:06,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:06,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:06,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:06,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:06,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:06,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:06,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:06,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:06,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:06,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:06,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:06,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:06,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:06,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:06,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:06,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:06,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:06,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:06,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 02:59:06,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:06,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:06,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:06,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:06,164 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:06,164 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:59:06,165 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:59:06,165 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:59:06,166 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:59:06,166 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:59:06,166 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:59:06,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:06,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:59:06,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:06,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:06,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:59:06,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:59:06,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:59:06,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:59:06,169 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:59:06,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:06,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:59:06,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:06,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:06,170 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:59:06,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:06,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:06,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:06,171 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:59:06,172 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:59:06,173 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_3759d526-479c-4033-a843-744dbf8b1bd0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0131b237d1353fa18fec727a7424c78c2056aaff [2020-11-28 02:59:06,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:06,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:06,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:06,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:06,561 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:06,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/cstrncat-alloca-1.i [2020-11-28 02:59:06,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/data/4a9a80027/699ba2fee88340a4ae7bdde61b5b6232/FLAG22fce1241 [2020-11-28 02:59:07,394 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:07,395 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/sv-benchmarks/c/termination-memory-alloca/cstrncat-alloca-1.i [2020-11-28 02:59:07,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/data/4a9a80027/699ba2fee88340a4ae7bdde61b5b6232/FLAG22fce1241 [2020-11-28 02:59:07,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/data/4a9a80027/699ba2fee88340a4ae7bdde61b5b6232 [2020-11-28 02:59:07,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:07,709 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:59:07,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:07,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:07,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:07,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:07" (1/1) ... [2020-11-28 02:59:07,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c26509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:07, skipping insertion in model container [2020-11-28 02:59:07,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:07" (1/1) ... [2020-11-28 02:59:07,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:07,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:08,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:08,166 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:08,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:08,256 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:08,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08 WrapperNode [2020-11-28 02:59:08,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:08,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:08,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:59:08,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:59:08,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:08,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:08,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:08,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:08,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... [2020-11-28 02:59:08,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:08,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:08,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:08,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:08,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:59:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:59:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:59:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:59:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:08,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:08,759 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:08,760 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:59:08,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:08 BoogieIcfgContainer [2020-11-28 02:59:08,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:08,762 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:59:08,762 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:59:08,765 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:59:08,766 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:59:08,766 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:59:07" (1/3) ... [2020-11-28 02:59:08,767 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59b6afaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:59:08, skipping insertion in model container [2020-11-28 02:59:08,767 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:59:08,767 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:08" (2/3) ... [2020-11-28 02:59:08,768 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59b6afaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:59:08, skipping insertion in model container [2020-11-28 02:59:08,768 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:59:08,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:08" (3/3) ... [2020-11-28 02:59:08,769 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrncat-alloca-1.i [2020-11-28 02:59:08,808 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:59:08,809 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:59:08,809 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:59:08,809 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:08,809 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:08,809 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:59:08,809 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:08,809 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:59:08,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 02:59:08,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-28 02:59:08,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:59:08,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:59:08,845 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:59:08,846 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:59:08,846 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:59:08,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 02:59:08,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-28 02:59:08,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:59:08,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:59:08,852 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:59:08,852 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 02:59:08,861 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 13#L564true assume !(main_~length1~0 < 1); 16#L564-2true assume !(main_~length2~0 < 1); 10#L567-1true assume !(main_~n~0 < 1); 4#L570-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 7#L550-3true [2020-11-28 02:59:08,862 INFO L796 eck$LassoCheckResult]: Loop: 7#L550-3true call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 20#L550-1true assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 7#L550-3true [2020-11-28 02:59:08,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:08,872 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2020-11-28 02:59:08,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:08,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655809536] [2020-11-28 02:59:08,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:08,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:09,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:09,081 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:59:09,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:09,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2020-11-28 02:59:09,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:09,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537024353] [2020-11-28 02:59:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:09,106 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:09,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:09,122 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:59:09,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:09,127 INFO L82 PathProgramCache]: Analyzing trace with hash 180553748, now seen corresponding path program 1 times [2020-11-28 02:59:09,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:09,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625235600] [2020-11-28 02:59:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:09,174 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:09,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:09,216 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:59:09,780 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 95 [2020-11-28 02:59:09,979 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-28 02:59:10,004 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:59:10,004 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:59:10,004 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:59:10,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:59:10,005 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:59:10,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:10,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:59:10,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:59:10,005 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-1.i_Iteration1_Lasso [2020-11-28 02:59:10,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:59:10,006 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:59:10,035 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 02:59:10,042 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 02:59:10,051 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 02:59:10,054 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 02:59:10,059 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 02:59:10,063 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 02:59:10,067 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 02:59:10,070 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 02:59:10,076 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 02:59:10,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:59:10,088 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 02:59:10,091 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 02:59:10,103 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 02:59:10,106 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 02:59:10,110 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 02:59:10,116 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 02:59:10,118 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 02:59:10,122 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 02:59:10,125 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 02:59:10,131 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 02:59:10,138 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 02:59:10,502 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2020-11-28 02:59:10,581 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 02:59:10,584 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 02:59:10,587 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 02:59:10,590 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 02:59:10,841 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-28 02:59:11,137 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-28 02:59:11,209 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:59:11,213 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:59:11,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:59:11,294 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:59:11,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:59:11,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,345 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 02:59:11,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,372 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,398 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 02:59:11,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,403 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:59:11,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:59:11,412 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,448 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 02:59:11,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,480 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 02:59:11,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,512 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 02:59:11,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,542 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 02:59:11,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:59:11,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:59:11,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,577 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 [2020-11-28 02:59:11,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,629 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 02:59:11,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,686 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 02:59:11,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,689 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 02:59:11,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,725 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 02:59:11,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,727 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,727 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,728 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,729 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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) [2020-11-28 02:59:11,756 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 Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,758 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,758 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,783 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 02:59:11,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:59:11,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,814 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,835 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 02:59:11,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,843 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,865 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 02:59:11,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,892 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 02:59:11,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:59:11,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:59:11,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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) [2020-11-28 02:59:11,940 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:11,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:11,980 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 02:59:11,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:11,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:59:11,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:11,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:11,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:11,982 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:59:11,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:59:11,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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 02:59:12,007 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 02:59:12,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:12,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:12,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:12,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:12,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:59:12,017 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:59:12,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:12,043 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 02:59:12,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:12,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:12,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:12,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:12,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:59:12,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:59:12,088 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:12,122 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 02:59:12,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:59:12,125 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:59:12,125 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:59:12,125 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:59:12,138 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:59:12,138 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:59:12,160 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:59:12,343 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 02:59:12,344 INFO L444 ModelExtractionUtils]: 46 out of 55 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3759d526-479c-4033-a843-744dbf8b1bd0/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) [2020-11-28 02:59:12,348 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:59:12,351 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:59:12,351 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:59:12,352 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1, ULTIMATE.start_cstrncat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_1 - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [] [2020-11-28 02:59:12,435 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 02:59:12,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:59:12,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:12,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 02:59:12,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:59:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:12,537 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:59:12,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:59:12,554 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 02:59:12,568 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 02:59:12,569 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2020-11-28 02:59:12,673 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 50 states and 73 transitions. Complement of second has 8 states. [2020-11-28 02:59:12,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 02:59:12,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 02:59:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-11-28 02:59:12,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 02:59:12,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:59:12,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 02:59:12,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:59:12,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 02:59:12,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:59:12,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 73 transitions. [2020-11-28 02:59:12,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:59:12,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 20 states and 27 transitions. [2020-11-28 02:59:12,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-28 02:59:12,688 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 02:59:12,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2020-11-28 02:59:12,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 02:59:12,689 INFO L691 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-11-28 02:59:12,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2020-11-28 02:59:12,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-11-28 02:59:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-28 02:59:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2020-11-28 02:59:12,709 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-28 02:59:12,709 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2020-11-28 02:59:12,709 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:59:12,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2020-11-28 02:59:12,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 02:59:12,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:59:12,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:59:12,711 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:59:12,711 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 02:59:12,712 INFO L794 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 161#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~ret15.base, main_#t~ret15.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 162#L564 assume !(main_~length1~0 < 1); 163#L564-2 assume !(main_~length2~0 < 1); 175#L567-1 assume !(main_~n~0 < 1); 168#L570-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 169#L550-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 171#L550-1 assume !(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2; 166#L552-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 167#L552 assume !cstrncat_#t~short6; 174#L552-2 assume !!cstrncat_#t~short6;havoc cstrncat_#t~post4.base, cstrncat_#t~post4.offset;havoc cstrncat_#t~short6;havoc cstrncat_#t~mem5;cstrncat_#t~post7 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post7 - 1;havoc cstrncat_#t~post7;cstrncat_#t~post8.base, cstrncat_#t~post8.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post8.base, 1 + cstrncat_#t~post8.offset;havoc cstrncat_#t~post8.base, cstrncat_#t~post8.offset; 178#L552-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 165#L552 [2020-11-28 02:59:12,712 INFO L796 eck$LassoCheckResult]: Loop: 165#L552 assume !cstrncat_#t~short6; 173#L552-2 assume !!cstrncat_#t~short6;havoc cstrncat_#t~post4.base, cstrncat_#t~post4.offset;havoc cstrncat_#t~short6;havoc cstrncat_#t~mem5;cstrncat_#t~post7 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post7 - 1;havoc cstrncat_#t~post7;cstrncat_#t~post8.base, cstrncat_#t~post8.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post8.base, 1 + cstrncat_#t~post8.offset;havoc cstrncat_#t~post8.base, cstrncat_#t~post8.offset; 164#L552-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 165#L552 [2020-11-28 02:59:12,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:12,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1662025132, now seen corresponding path program 1 times [2020-11-28 02:59:12,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:12,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810263277] [2020-11-28 02:59:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:12,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:59:12,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810263277] [2020-11-28 02:59:12,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:12,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 02:59:12,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611830637] [2020-11-28 02:59:12,771 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 02:59:12,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:12,771 INFO L82 PathProgramCache]: Analyzing trace with hash 76643, now seen corresponding path program 1 times [2020-11-28 02:59:12,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:12,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410764110] [2020-11-28 02:59:12,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:59:12,793 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 02:59:12,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410764110] [2020-11-28 02:59:12,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:59:12,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:59:12,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238705668] [2020-11-28 02:59:12,794 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 02:59:12,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:59:12,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:59:12,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:59:12,798 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand 3 states. [2020-11-28 02:59:12,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:59:12,814 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-11-28 02:59:12,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:59:12,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2020-11-28 02:59:12,816 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:59:12,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2020-11-28 02:59:12,817 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:59:12,817 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:59:12,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:59:12,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:59:12,817 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:59:12,817 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:59:12,817 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:59:12,817 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 02:59:12,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:59:12,817 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:59:12,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:59:12,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:59:12 BoogieIcfgContainer [2020-11-28 02:59:12,833 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:59:12,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:59:12,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:59:12,833 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:59:12,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:08" (3/4) ... [2020-11-28 02:59:12,836 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:59:12,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:59:12,838 INFO L168 Benchmark]: Toolchain (without parser) took 5128.78 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 79.7 MB in the beginning and 112.0 MB in the end (delta: -32.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:12,838 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 38.1 MB in the beginning and 38.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:12,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.87 ms. Allocated memory is still 113.2 MB. Free memory was 79.5 MB in the beginning and 79.0 MB in the end (delta: 537.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:12,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.66 ms. Allocated memory is still 113.2 MB. Free memory was 79.0 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:12,840 INFO L168 Benchmark]: Boogie Preprocessor took 37.35 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 75.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:12,840 INFO L168 Benchmark]: RCFGBuilder took 412.64 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 58.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:12,841 INFO L168 Benchmark]: BuchiAutomizer took 4070.70 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 58.0 MB in the beginning and 112.1 MB in the end (delta: -54.1 MB). Peak memory consumption was 45.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:12,841 INFO L168 Benchmark]: Witness Printer took 3.37 ms. Allocated memory is still 140.5 MB. Free memory was 112.1 MB in the beginning and 112.0 MB in the end (delta: 129.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:12,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 38.1 MB in the beginning and 38.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 529.87 ms. Allocated memory is still 113.2 MB. Free memory was 79.5 MB in the beginning and 79.0 MB in the end (delta: 537.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.66 ms. Allocated memory is still 113.2 MB. Free memory was 79.0 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.35 ms. Allocated memory is still 113.2 MB. Free memory was 76.9 MB in the beginning and 75.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 412.64 ms. Allocated memory is still 113.2 MB. Free memory was 75.6 MB in the beginning and 58.0 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4070.70 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 58.0 MB in the beginning and 112.1 MB in the end (delta: -54.1 MB). Peak memory consumption was 45.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.37 ms. Allocated memory is still 140.5 MB. Free memory was 112.1 MB in the beginning and 112.0 MB in the end (delta: 129.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * s and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 34 SDtfs, 35 SDslu, 20 SDs, 0 SdLazy, 19 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI1 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital199 mio100 ax109 hnf99 lsp88 ukn76 mio100 lsp52 div100 bol100 ite100 ukn100 eq192 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 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...