./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcat_short.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_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcat_short.i -s /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 2cfe214f4978682dac68f5565e20ebc7c152d196 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:08:54,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:54,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:54,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:54,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:54,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:54,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:54,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:54,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:54,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:54,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:54,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:54,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:54,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:54,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:54,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:54,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:54,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:54,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:54,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:54,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:54,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:54,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:54,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:54,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:54,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:54,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:54,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:54,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:54,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:54,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:54,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:54,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:54,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:54,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:54,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:54,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:54,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:54,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:54,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:54,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:54,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:08:54,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:54,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:54,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:54,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:54,921 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:54,921 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:08:54,921 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:08:54,921 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:08:54,922 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:08:54,922 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:08:54,923 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:08:54,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:54,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:08:54,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:54,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:54,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:08:54,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:08:54,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:08:54,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:54,925 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:08:54,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:54,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:08:54,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:54,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:54,926 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:08:54,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:54,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:54,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:54,927 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:08:54,929 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:08:54,930 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_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cfe214f4978682dac68f5565e20ebc7c152d196 [2020-11-28 03:08:55,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:55,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:55,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:55,244 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:55,245 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:55,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/../../sv-benchmarks/c/termination-dietlibc/strcat_short.i [2020-11-28 03:08:55,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/data/85cd01499/ea697b7e004c489d98b877e8b3aa1776/FLAGe4dfe5bcc [2020-11-28 03:08:55,964 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:55,968 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/sv-benchmarks/c/termination-dietlibc/strcat_short.i [2020-11-28 03:08:55,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/data/85cd01499/ea697b7e004c489d98b877e8b3aa1776/FLAGe4dfe5bcc [2020-11-28 03:08:56,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/data/85cd01499/ea697b7e004c489d98b877e8b3aa1776 [2020-11-28 03:08:56,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:56,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:56,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:56,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:56,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:56,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2610f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56, skipping insertion in model container [2020-11-28 03:08:56,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:56,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:56,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:56,652 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:56,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:56,755 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:56,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56 WrapperNode [2020-11-28 03:08:56,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:56,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:56,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:56,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:56,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:56,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:56,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:56,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:56,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... [2020-11-28 03:08:56,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:56,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:56,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:56,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:56,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:08:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:08:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:08:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:08:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:56,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:57,418 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:57,420 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-28 03:08:57,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:57 BoogieIcfgContainer [2020-11-28 03:08:57,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:57,425 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:08:57,425 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:08:57,429 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:08:57,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:08:57,430 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:08:56" (1/3) ... [2020-11-28 03:08:57,431 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@171091d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:08:57, skipping insertion in model container [2020-11-28 03:08:57,431 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:08:57,431 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:56" (2/3) ... [2020-11-28 03:08:57,432 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@171091d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:08:57, skipping insertion in model container [2020-11-28 03:08:57,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:08:57,432 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:57" (3/3) ... [2020-11-28 03:08:57,434 INFO L373 chiAutomizerObserver]: Analyzing ICFG strcat_short.i [2020-11-28 03:08:57,501 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:08:57,501 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:08:57,501 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:08:57,502 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:57,502 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:57,502 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:08:57,502 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:57,503 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:08:57,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:08:57,539 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-28 03:08:57,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:08:57,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:08:57,546 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:08:57,546 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:08:57,547 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:08:57,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:08:57,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-11-28 03:08:57,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:08:57,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:08:57,552 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:08:57,552 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:08:57,559 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out_end~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet9;havoc main_#t~nondet9; 7#L523true assume !(main_~in_len~0 < 1);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 20#L527true assume !(main_~out_len~0 < 1);main_~out_end~0 := main_#t~nondet12;havoc main_#t~nondet12; 16#L529true assume !(main_~out_len~0 < main_~out_end~0 + main_~in_len~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + main_~out_end~0, 1);strcat_#in~s.base, strcat_#in~s.offset, strcat_#in~t.base, strcat_#in~t.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcat_#res.base, strcat_#res.offset;havoc strcat_#t~ret5, strcat_#t~mem6, strcat_#t~pre7.base, strcat_#t~pre7.offset, strcat_#t~pre8.base, strcat_#t~pre8.offset, strcat_~s.base, strcat_~s.offset, strcat_~t.base, strcat_~t.offset, strcat_~dest~0.base, strcat_~dest~0.offset;strcat_~s.base, strcat_~s.offset := strcat_#in~s.base, strcat_#in~s.offset;strcat_~t.base, strcat_~t.offset := strcat_#in~t.base, strcat_#in~t.offset;strcat_~dest~0.base, strcat_~dest~0.offset := strcat_~s.base, strcat_~s.offset;strlen_#in~s.base, strlen_#in~s.offset := strcat_~s.base, strcat_~s.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 14#L508true assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 3#L509-4true [2020-11-28 03:08:57,560 INFO L796 eck$LassoCheckResult]: Loop: 3#L509-4true call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 15#L509-1true assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 19#L509-3true strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 3#L509-4true [2020-11-28 03:08:57,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:57,568 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2020-11-28 03:08:57,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:57,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243020743] [2020-11-28 03:08:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,792 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,823 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:57,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:57,828 INFO L82 PathProgramCache]: Analyzing trace with hash 55771, now seen corresponding path program 1 times [2020-11-28 03:08:57,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:57,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737246001] [2020-11-28 03:08:57,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:57,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1271629391, now seen corresponding path program 1 times [2020-11-28 03:08:57,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:57,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149893434] [2020-11-28 03:08:57,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:57,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,939 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:57,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:57,974 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:58,638 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105 [2020-11-28 03:08:58,830 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-28 03:08:58,848 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:08:58,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:08:58,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:08:58,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:08:58,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:08:58,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:08:58,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:08:58,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:08:58,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcat_short.i_Iteration1_Lasso [2020-11-28 03:08:58,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:08:58,850 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:08:58,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:58,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,357 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-11-28 03:08:59,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:08:59,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:00,045 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-28 03:09:00,114 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:00,118 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:00,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,224 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,253 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:00,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,319 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:00,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,343 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,471 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,512 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 03:09:00,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:00,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,542 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 03:09:00,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,547 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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) [2020-11-28 03:09:00,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,673 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:00,756 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,765 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:00,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:00,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,789 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:09:00,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,790 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:09:00,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:00,792 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:00,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:00,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:00,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:00,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:00,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:00,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:00,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:00,884 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:01,096 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 03:09:01,096 INFO L444 ModelExtractionUtils]: 44 out of 55 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:01,138 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:01,142 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:09:01,143 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:01,143 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strlen_~s.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1) = -1*ULTIMATE.start_strlen_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1 Supporting invariants [] [2020-11-28 03:09:01,229 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2020-11-28 03:09:01,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:09:01,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:01,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-28 03:09:01,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:09:01,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:01,427 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2020-11-28 03:09:01,428 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 5 states. [2020-11-28 03:09:01,610 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 5 states. Result 45 states and 60 transitions. Complement of second has 8 states. [2020-11-28 03:09:01,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:09:01,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-28 03:09:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 44 transitions. [2020-11-28 03:09:01,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 44 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-28 03:09:01,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:01,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 44 transitions. Stem has 9 letters. Loop has 3 letters. [2020-11-28 03:09:01,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:01,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 44 transitions. Stem has 6 letters. Loop has 6 letters. [2020-11-28 03:09:01,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:01,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2020-11-28 03:09:01,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-28 03:09:01,626 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 18 states and 21 transitions. [2020-11-28 03:09:01,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-11-28 03:09:01,628 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-11-28 03:09:01,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2020-11-28 03:09:01,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:09:01,629 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-28 03:09:01,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2020-11-28 03:09:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 15. [2020-11-28 03:09:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 03:09:01,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2020-11-28 03:09:01,660 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-11-28 03:09:01,660 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2020-11-28 03:09:01,660 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:09:01,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-11-28 03:09:01,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:01,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:01,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:01,665 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:01,665 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:01,665 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 172#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out_end~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet9;havoc main_#t~nondet9; 170#L523 assume !(main_~in_len~0 < 1);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 171#L527 assume !(main_~out_len~0 < 1);main_~out_end~0 := main_#t~nondet12;havoc main_#t~nondet12; 176#L529 assume !(main_~out_len~0 < main_~out_end~0 + main_~in_len~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + main_~out_end~0, 1);strcat_#in~s.base, strcat_#in~s.offset, strcat_#in~t.base, strcat_#in~t.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcat_#res.base, strcat_#res.offset;havoc strcat_#t~ret5, strcat_#t~mem6, strcat_#t~pre7.base, strcat_#t~pre7.offset, strcat_#t~pre8.base, strcat_#t~pre8.offset, strcat_~s.base, strcat_~s.offset, strcat_~t.base, strcat_~t.offset, strcat_~dest~0.base, strcat_~dest~0.offset;strcat_~s.base, strcat_~s.offset := strcat_#in~s.base, strcat_#in~s.offset;strcat_~t.base, strcat_~t.offset := strcat_#in~t.base, strcat_#in~t.offset;strcat_~dest~0.base, strcat_~dest~0.offset := strcat_~s.base, strcat_~s.offset;strlen_#in~s.base, strlen_#in~s.offset := strcat_~s.base, strcat_~s.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 175#L508 assume strlen_~s.base == 0 && strlen_~s.offset == 0;strlen_#res := 0; 167#L510 strcat_#t~ret5 := strlen_#res;strcat_~s.base, strcat_~s.offset := strcat_~s.base, strcat_~s.offset + strcat_#t~ret5 % 4294967296;havoc strcat_#t~ret5; 168#L516-2 [2020-11-28 03:09:01,666 INFO L796 eck$LassoCheckResult]: Loop: 168#L516-2 assume !false;call strcat_#t~mem6 := read~int(strcat_~t.base, strcat_~t.offset, 1);call write~int(strcat_#t~mem6, strcat_~s.base, strcat_~s.offset, 1); 169#L517 assume !(0 == strcat_#t~mem6);havoc strcat_#t~mem6;strcat_#t~pre7.base, strcat_#t~pre7.offset := strcat_~s.base, 1 + strcat_~s.offset;strcat_~s.base, strcat_~s.offset := strcat_~s.base, 1 + strcat_~s.offset;havoc strcat_#t~pre7.base, strcat_#t~pre7.offset;strcat_#t~pre8.base, strcat_#t~pre8.offset := strcat_~t.base, 1 + strcat_~t.offset;strcat_~t.base, strcat_~t.offset := strcat_~t.base, 1 + strcat_~t.offset;havoc strcat_#t~pre8.base, strcat_#t~pre8.offset; 168#L516-2 [2020-11-28 03:09:01,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:01,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907772, now seen corresponding path program 1 times [2020-11-28 03:09:01,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:01,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178353836] [2020-11-28 03:09:01,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:01,920 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2020-11-28 03:09:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:01,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178353836] [2020-11-28 03:09:01,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:01,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:09:01,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295004193] [2020-11-28 03:09:01,933 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-28 03:09:01,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:01,934 INFO L82 PathProgramCache]: Analyzing trace with hash 2470, now seen corresponding path program 1 times [2020-11-28 03:09:01,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:01,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712307389] [2020-11-28 03:09:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:01,947 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:01,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:01,962 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:02,109 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-28 03:09:02,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:02,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:09:02,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:09:02,162 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-11-28 03:09:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:02,202 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-11-28 03:09:02,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:09:02,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2020-11-28 03:09:02,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:02,205 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 17 transitions. [2020-11-28 03:09:02,205 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-11-28 03:09:02,206 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-11-28 03:09:02,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2020-11-28 03:09:02,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:09:02,206 INFO L691 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-28 03:09:02,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2020-11-28 03:09:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-28 03:09:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 03:09:02,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-11-28 03:09:02,209 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-28 03:09:02,209 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-11-28 03:09:02,209 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:09:02,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 17 transitions. [2020-11-28 03:09:02,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:02,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:02,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:02,211 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:02,211 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:02,211 INFO L794 eck$LassoCheckResult]: Stem: 212#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 211#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out_end~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet9;havoc main_#t~nondet9; 209#L523 assume !(main_~in_len~0 < 1);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 210#L527 assume !(main_~out_len~0 < 1);main_~out_end~0 := main_#t~nondet12;havoc main_#t~nondet12; 215#L529 assume !(main_~out_len~0 < main_~out_end~0 + main_~in_len~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + main_~out_end~0, 1);strcat_#in~s.base, strcat_#in~s.offset, strcat_#in~t.base, strcat_#in~t.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcat_#res.base, strcat_#res.offset;havoc strcat_#t~ret5, strcat_#t~mem6, strcat_#t~pre7.base, strcat_#t~pre7.offset, strcat_#t~pre8.base, strcat_#t~pre8.offset, strcat_~s.base, strcat_~s.offset, strcat_~t.base, strcat_~t.offset, strcat_~dest~0.base, strcat_~dest~0.offset;strcat_~s.base, strcat_~s.offset := strcat_#in~s.base, strcat_#in~s.offset;strcat_~t.base, strcat_~t.offset := strcat_#in~t.base, strcat_#in~t.offset;strcat_~dest~0.base, strcat_~dest~0.offset := strcat_~s.base, strcat_~s.offset;strlen_#in~s.base, strlen_#in~s.offset := strcat_~s.base, strcat_~s.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 214#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 201#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 202#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 205#L509-5 strlen_#res := strlen_~i~0; 206#L510 strcat_#t~ret5 := strlen_#res;strcat_~s.base, strcat_~s.offset := strcat_~s.base, strcat_~s.offset + strcat_#t~ret5 % 4294967296;havoc strcat_#t~ret5; 207#L516-2 [2020-11-28 03:09:02,211 INFO L796 eck$LassoCheckResult]: Loop: 207#L516-2 assume !false;call strcat_#t~mem6 := read~int(strcat_~t.base, strcat_~t.offset, 1);call write~int(strcat_#t~mem6, strcat_~s.base, strcat_~s.offset, 1); 208#L517 assume !(0 == strcat_#t~mem6);havoc strcat_#t~mem6;strcat_#t~pre7.base, strcat_#t~pre7.offset := strcat_~s.base, 1 + strcat_~s.offset;strcat_~s.base, strcat_~s.offset := strcat_~s.base, 1 + strcat_~s.offset;havoc strcat_#t~pre7.base, strcat_#t~pre7.offset;strcat_#t~pre8.base, strcat_#t~pre8.offset := strcat_~t.base, 1 + strcat_~t.offset;strcat_~t.base, strcat_~t.offset := strcat_~t.base, 1 + strcat_~t.offset;havoc strcat_#t~pre8.base, strcat_#t~pre8.offset; 207#L516-2 [2020-11-28 03:09:02,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:02,212 INFO L82 PathProgramCache]: Analyzing trace with hash 765803698, now seen corresponding path program 1 times [2020-11-28 03:09:02,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:02,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174178203] [2020-11-28 03:09:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,289 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,295 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:02,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:02,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2470, now seen corresponding path program 2 times [2020-11-28 03:09:02,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:02,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23149904] [2020-11-28 03:09:02,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,315 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,330 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:02,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:02,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1497947671, now seen corresponding path program 1 times [2020-11-28 03:09:02,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:02,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514529723] [2020-11-28 03:09:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,392 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:02,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:02,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:03,446 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 122 [2020-11-28 03:09:03,704 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-11-28 03:09:03,706 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:03,707 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:03,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:03,707 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:03,707 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:03,707 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:03,707 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:03,707 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:03,707 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcat_short.i_Iteration3_Lasso [2020-11-28 03:09:03,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:03,708 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:03,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:03,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,472 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2020-11-28 03:09:04,672 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-11-28 03:09:04,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:04,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:05,126 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2020-11-28 03:09:05,516 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-28 03:09:05,721 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:05,722 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,736 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,737 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,737 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:05,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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) [2020-11-28 03:09:05,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,767 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,774 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:05,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:05,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/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 03:09:05,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:05,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:05,873 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:05,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:05,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:05,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:05,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:05,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:05,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:05,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:05,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:05,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:05,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:05,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:05,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:06,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:06,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:06,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:06,006 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,030 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:06,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:06,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:06,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:06,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:06,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:06,056 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:06,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:06,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:06,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:06,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:06,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:06,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:06,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:06,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:06,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:06,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:06,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:06,239 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:06,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:06,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:06,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:06,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:06,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:06,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:06,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,311 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:06,311 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:06,344 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:06,402 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-28 03:09:06,402 INFO L444 ModelExtractionUtils]: 54 out of 67 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:06,405 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:06,408 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:09:06,409 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:06,409 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcat_~s.offset, v_rep(select #length ULTIMATE.start_strcat_~t.base)_1) = -1*ULTIMATE.start_strcat_~s.offset + 1*v_rep(select #length ULTIMATE.start_strcat_~t.base)_1 Supporting invariants [] [2020-11-28 03:09:06,541 INFO L297 tatePredicateManager]: 21 out of 22 supporting invariants were superfluous and have been removed [2020-11-28 03:09:06,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:09:06,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:06,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-28 03:09:06,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:06,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:09:06,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:06,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:06,757 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-11-28 03:09:06,757 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4 Second operand 8 states. [2020-11-28 03:09:07,086 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 17 transitions. cyclomatic complexity: 4. Second operand 8 states. Result 26 states and 29 transitions. Complement of second has 11 states. [2020-11-28 03:09:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-28 03:09:07,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:09:07,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 20 transitions. [2020-11-28 03:09:07,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 20 transitions. Stem has 10 letters. Loop has 2 letters. [2020-11-28 03:09:07,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:07,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 20 transitions. Stem has 12 letters. Loop has 2 letters. [2020-11-28 03:09:07,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:07,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 20 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-28 03:09:07,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:07,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2020-11-28 03:09:07,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:07,090 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 20 transitions. [2020-11-28 03:09:07,090 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-28 03:09:07,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-28 03:09:07,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 20 transitions. [2020-11-28 03:09:07,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:09:07,091 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-11-28 03:09:07,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 20 transitions. [2020-11-28 03:09:07,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2020-11-28 03:09:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-28 03:09:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-11-28 03:09:07,093 INFO L714 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-28 03:09:07,093 INFO L594 BuchiCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-11-28 03:09:07,093 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:09:07,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 16 transitions. [2020-11-28 03:09:07,094 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:07,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:07,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:07,094 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:07,094 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:07,095 INFO L794 eck$LassoCheckResult]: Stem: 427#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 426#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out_end~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet9;havoc main_#t~nondet9; 424#L523 assume !(main_~in_len~0 < 1);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 425#L527 assume !(main_~out_len~0 < 1);main_~out_end~0 := main_#t~nondet12;havoc main_#t~nondet12; 430#L529 assume !(main_~out_len~0 < main_~out_end~0 + main_~in_len~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + main_~out_end~0, 1);strcat_#in~s.base, strcat_#in~s.offset, strcat_#in~t.base, strcat_#in~t.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcat_#res.base, strcat_#res.offset;havoc strcat_#t~ret5, strcat_#t~mem6, strcat_#t~pre7.base, strcat_#t~pre7.offset, strcat_#t~pre8.base, strcat_#t~pre8.offset, strcat_~s.base, strcat_~s.offset, strcat_~t.base, strcat_~t.offset, strcat_~dest~0.base, strcat_~dest~0.offset;strcat_~s.base, strcat_~s.offset := strcat_#in~s.base, strcat_#in~s.offset;strcat_~t.base, strcat_~t.offset := strcat_#in~t.base, strcat_#in~t.offset;strcat_~dest~0.base, strcat_~dest~0.offset := strcat_~s.base, strcat_~s.offset;strlen_#in~s.base, strlen_#in~s.offset := strcat_~s.base, strcat_~s.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 429#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 416#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 417#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 428#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 418#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 419#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 420#L509-5 strlen_#res := strlen_~i~0; 421#L510 strcat_#t~ret5 := strlen_#res;strcat_~s.base, strcat_~s.offset := strcat_~s.base, strcat_~s.offset + strcat_#t~ret5 % 4294967296;havoc strcat_#t~ret5; 422#L516-2 [2020-11-28 03:09:07,095 INFO L796 eck$LassoCheckResult]: Loop: 422#L516-2 assume !false;call strcat_#t~mem6 := read~int(strcat_~t.base, strcat_~t.offset, 1);call write~int(strcat_#t~mem6, strcat_~s.base, strcat_~s.offset, 1); 423#L517 assume !(0 == strcat_#t~mem6);havoc strcat_#t~mem6;strcat_#t~pre7.base, strcat_#t~pre7.offset := strcat_~s.base, 1 + strcat_~s.offset;strcat_~s.base, strcat_~s.offset := strcat_~s.base, 1 + strcat_~s.offset;havoc strcat_#t~pre7.base, strcat_#t~pre7.offset;strcat_#t~pre8.base, strcat_#t~pre8.offset := strcat_~t.base, 1 + strcat_~t.offset;strcat_~t.base, strcat_~t.offset := strcat_~t.base, 1 + strcat_~t.offset;havoc strcat_#t~pre8.base, strcat_#t~pre8.offset; 422#L516-2 [2020-11-28 03:09:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:07,095 INFO L82 PathProgramCache]: Analyzing trace with hash -755103244, now seen corresponding path program 1 times [2020-11-28 03:09:07,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:07,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158200248] [2020-11-28 03:09:07,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:07,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:07,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:07,131 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:07,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:07,132 INFO L82 PathProgramCache]: Analyzing trace with hash 2470, now seen corresponding path program 3 times [2020-11-28 03:09:07,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:07,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111919038] [2020-11-28 03:09:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:07,136 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:07,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:07,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:07,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:07,141 INFO L82 PathProgramCache]: Analyzing trace with hash 195257049, now seen corresponding path program 1 times [2020-11-28 03:09:07,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:07,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789602767] [2020-11-28 03:09:07,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:07,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:07,175 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:07,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:07,920 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 133 [2020-11-28 03:09:08,070 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-28 03:09:08,072 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:08,072 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:08,072 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:08,072 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:08,073 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:08,073 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:08,073 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:08,073 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:08,073 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcat_short.i_Iteration4_Lasso [2020-11-28 03:09:08,073 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:08,073 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:08,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,598 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2020-11-28 03:09:08,804 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2020-11-28 03:09:08,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:08,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:09,421 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-11-28 03:09:09,631 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:09,631 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:09,642 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:09,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:09,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:09,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:09,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:09,646 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:09,646 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:09,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:09,701 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:09,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:09,703 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 03:09:09,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:09,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:09,706 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 03:09:09,706 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:09,712 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:09,755 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:09,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:09,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:09,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:09,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:09,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:09,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:09,809 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:09,851 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 03:09:09,851 INFO L444 ModelExtractionUtils]: 20 out of 58 variables were initially zero. Simplification set additionally 32 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:09,853 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:09:09,855 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 03:09:09,855 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:09,856 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcat_~s.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3) = -2*ULTIMATE.start_strcat_~s.offset + 5*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 Supporting invariants [5*ULTIMATE.start_strcat_~t.offset - 2*ULTIMATE.start_strcat_~s.offset + 2 >= 0] [2020-11-28 03:09:09,983 INFO L297 tatePredicateManager]: 26 out of 28 supporting invariants were superfluous and have been removed [2020-11-28 03:09:09,987 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:09:10,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:10,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-28 03:09:10,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:10,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 03:09:10,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:10,313 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-11-28 03:09:10,313 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3 Second operand 8 states. [2020-11-28 03:09:10,539 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 16 transitions. cyclomatic complexity: 3. Second operand 8 states. Result 28 states and 31 transitions. Complement of second has 11 states. [2020-11-28 03:09:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-28 03:09:10,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:09:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 22 transitions. [2020-11-28 03:09:10,540 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 13 letters. Loop has 2 letters. [2020-11-28 03:09:10,541 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:10,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 15 letters. Loop has 2 letters. [2020-11-28 03:09:10,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:10,542 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 22 transitions. Stem has 13 letters. Loop has 4 letters. [2020-11-28 03:09:10,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:10,542 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 31 transitions. [2020-11-28 03:09:10,549 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:10,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 22 transitions. [2020-11-28 03:09:10,550 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-11-28 03:09:10,550 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-11-28 03:09:10,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 22 transitions. [2020-11-28 03:09:10,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:09:10,550 INFO L691 BuchiCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-28 03:09:10,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 22 transitions. [2020-11-28 03:09:10,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-11-28 03:09:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-28 03:09:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-11-28 03:09:10,553 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-11-28 03:09:10,553 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-11-28 03:09:10,553 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:09:10,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 19 transitions. [2020-11-28 03:09:10,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:10,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:10,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:10,554 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:09:10,555 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:10,555 INFO L794 eck$LassoCheckResult]: Stem: 677#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 676#L-1 havoc main_#res;havoc main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14.base, main_#t~ret14.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out_end~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet9;havoc main_#t~nondet9; 674#L523 assume !(main_~in_len~0 < 1);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet11;havoc main_#t~nondet11; 675#L527 assume !(main_~out_len~0 < 1);main_~out_end~0 := main_#t~nondet12;havoc main_#t~nondet12; 681#L529 assume !(main_~out_len~0 < main_~out_end~0 + main_~in_len~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call write~int(0, main_~out~0.base, main_~out~0.offset + main_~out_end~0, 1);strcat_#in~s.base, strcat_#in~s.offset, strcat_#in~t.base, strcat_#in~t.offset := main_~in~0.base, main_~in~0.offset, main_~out~0.base, main_~out~0.offset;havoc strcat_#res.base, strcat_#res.offset;havoc strcat_#t~ret5, strcat_#t~mem6, strcat_#t~pre7.base, strcat_#t~pre7.offset, strcat_#t~pre8.base, strcat_#t~pre8.offset, strcat_~s.base, strcat_~s.offset, strcat_~t.base, strcat_~t.offset, strcat_~dest~0.base, strcat_~dest~0.offset;strcat_~s.base, strcat_~s.offset := strcat_#in~s.base, strcat_#in~s.offset;strcat_~t.base, strcat_~t.offset := strcat_#in~t.base, strcat_#in~t.offset;strcat_~dest~0.base, strcat_~dest~0.offset := strcat_~s.base, strcat_~s.offset;strlen_#in~s.base, strlen_#in~s.offset := strcat_~s.base, strcat_~s.offset;havoc strlen_#res;havoc strlen_#t~pre3, strlen_#t~pre2.base, strlen_#t~pre2.offset, strlen_#t~mem4, strlen_~s.base, strlen_~s.offset, strlen_~i~0;strlen_~s.base, strlen_~s.offset := strlen_#in~s.base, strlen_#in~s.offset;havoc strlen_~i~0; 680#L508 assume !(strlen_~s.base == 0 && strlen_~s.offset == 0);strlen_~i~0 := 0; 666#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 667#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 679#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 668#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 669#L509-1 assume !!(0 != strlen_#t~mem4);havoc strlen_#t~mem4;strlen_#t~pre3 := 1 + strlen_~i~0;strlen_~i~0 := 1 + strlen_~i~0;havoc strlen_#t~pre3; 683#L509-3 strlen_#t~pre2.base, strlen_#t~pre2.offset := strlen_~s.base, 1 + strlen_~s.offset;strlen_~s.base, strlen_~s.offset := strlen_~s.base, 1 + strlen_~s.offset;havoc strlen_#t~pre2.base, strlen_#t~pre2.offset; 682#L509-4 call strlen_#t~mem4 := read~int(strlen_~s.base, strlen_~s.offset, 1); 678#L509-1 assume !(0 != strlen_#t~mem4);havoc strlen_#t~mem4; 670#L509-5 strlen_#res := strlen_~i~0; 671#L510 strcat_#t~ret5 := strlen_#res;strcat_~s.base, strcat_~s.offset := strcat_~s.base, strcat_~s.offset + strcat_#t~ret5 % 4294967296;havoc strcat_#t~ret5; 672#L516-2 [2020-11-28 03:09:10,555 INFO L796 eck$LassoCheckResult]: Loop: 672#L516-2 assume !false;call strcat_#t~mem6 := read~int(strcat_~t.base, strcat_~t.offset, 1);call write~int(strcat_#t~mem6, strcat_~s.base, strcat_~s.offset, 1); 673#L517 assume !(0 == strcat_#t~mem6);havoc strcat_#t~mem6;strcat_#t~pre7.base, strcat_#t~pre7.offset := strcat_~s.base, 1 + strcat_~s.offset;strcat_~s.base, strcat_~s.offset := strcat_~s.base, 1 + strcat_~s.offset;havoc strcat_#t~pre7.base, strcat_#t~pre7.offset;strcat_#t~pre8.base, strcat_#t~pre8.offset := strcat_~t.base, 1 + strcat_~t.offset;strcat_~t.base, strcat_~t.offset := strcat_~t.base, 1 + strcat_~t.offset;havoc strcat_#t~pre8.base, strcat_#t~pre8.offset; 672#L516-2 [2020-11-28 03:09:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:10,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1811160434, now seen corresponding path program 2 times [2020-11-28 03:09:10,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:10,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518976784] [2020-11-28 03:09:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:10,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:10,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:10,602 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:10,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:10,603 INFO L82 PathProgramCache]: Analyzing trace with hash 2470, now seen corresponding path program 4 times [2020-11-28 03:09:10,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:10,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93459979] [2020-11-28 03:09:10,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:10,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:10,611 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:10,617 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:10,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:10,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1063423703, now seen corresponding path program 2 times [2020-11-28 03:09:10,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:10,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133313528] [2020-11-28 03:09:10,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:10,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:10,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:10,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:10,662 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:11,519 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 147 [2020-11-28 03:09:11,711 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-11-28 03:09:11,714 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:11,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:11,714 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:11,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:11,714 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:11,714 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:11,715 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:11,715 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:11,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcat_short.i_Iteration5_Lasso [2020-11-28 03:09:11,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:11,715 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:11,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:11,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,397 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 102 [2020-11-28 03:09:12,614 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2020-11-28 03:09:12,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:09:12,894 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-28 03:09:13,288 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-11-28 03:09:13,452 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:13,453 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:13,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:13,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:13,554 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:13,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,594 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:13,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:13,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:13,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:13,652 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:13,679 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:13,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:13,752 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:13,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,796 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:13,835 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 03:09:13,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,837 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:13,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,925 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:13,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:13,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:13,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:13,951 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:13,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:13,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:13,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:13,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:13,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:13,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:13,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:13,999 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:13,999 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:14,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:14,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:14,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:14,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:14,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:14,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:14,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:14,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:14,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:14,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:14,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:14,054 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 03:09:14,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:14,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:14,056 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 03:09:14,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:14,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:14,084 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:14,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:14,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:14,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:14,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:14,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:14,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:14,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:14,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:09:14,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:14,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:14,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:14,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:14,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:14,151 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:14,181 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:14,216 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2020-11-28 03:09:14,216 INFO L444 ModelExtractionUtils]: 47 out of 67 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_be52dc5a-4f95-4971-ac29-8db04c79ca0c/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:14,218 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:14,228 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:09:14,228 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:14,229 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4, ULTIMATE.start_strcat_~t.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4 - 1*ULTIMATE.start_strcat_~t.offset Supporting invariants [] [2020-11-28 03:09:14,392 INFO L297 tatePredicateManager]: 26 out of 27 supporting invariants were superfluous and have been removed [2020-11-28 03:09:14,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:09:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:14,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:09:14,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:14,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:09:14,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:14,493 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 03:09:14,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 19 transitions. cyclomatic complexity: 3 Second operand 4 states. [2020-11-28 03:09:14,543 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 19 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 20 states and 22 transitions. Complement of second has 5 states. [2020-11-28 03:09:14,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:09:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:09:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-28 03:09:14,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 16 letters. Loop has 2 letters. [2020-11-28 03:09:14,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:14,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 18 letters. Loop has 2 letters. [2020-11-28 03:09:14,545 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:14,545 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 16 letters. Loop has 4 letters. [2020-11-28 03:09:14,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:14,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2020-11-28 03:09:14,547 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:09:14,547 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2020-11-28 03:09:14,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:09:14,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:09:14,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:09:14,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:09:14,547 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:14,547 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:14,547 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:14,547 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-28 03:09:14,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:09:14,548 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:09:14,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:09:14,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:09:14 BoogieIcfgContainer [2020-11-28 03:09:14,553 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:09:14,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:14,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:14,554 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:14,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:57" (3/4) ... [2020-11-28 03:09:14,557 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:09:14,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:14,558 INFO L168 Benchmark]: Toolchain (without parser) took 18310.74 ms. Allocated memory was 83.9 MB in the beginning and 211.8 MB in the end (delta: 127.9 MB). Free memory was 51.4 MB in the beginning and 155.5 MB in the end (delta: -104.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:14,559 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:14,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.35 ms. Allocated memory is still 83.9 MB. Free memory was 51.1 MB in the beginning and 50.8 MB in the end (delta: 315.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:14,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 83.9 MB. Free memory was 50.8 MB in the beginning and 48.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:14,560 INFO L168 Benchmark]: Boogie Preprocessor took 29.51 ms. Allocated memory is still 83.9 MB. Free memory was 48.7 MB in the beginning and 47.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:14,560 INFO L168 Benchmark]: RCFGBuilder took 581.74 ms. Allocated memory is still 83.9 MB. Free memory was 47.4 MB in the beginning and 30.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:14,561 INFO L168 Benchmark]: BuchiAutomizer took 17128.20 ms. Allocated memory was 83.9 MB in the beginning and 211.8 MB in the end (delta: 127.9 MB). Free memory was 30.2 MB in the beginning and 155.5 MB in the end (delta: -125.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:14,561 INFO L168 Benchmark]: Witness Printer took 3.89 ms. Allocated memory is still 211.8 MB. Free memory is still 155.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:14,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 496.35 ms. Allocated memory is still 83.9 MB. Free memory was 51.1 MB in the beginning and 50.8 MB in the end (delta: 315.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.64 ms. Allocated memory is still 83.9 MB. Free memory was 50.8 MB in the beginning and 48.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.51 ms. Allocated memory is still 83.9 MB. Free memory was 48.7 MB in the beginning and 47.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 581.74 ms. Allocated memory is still 83.9 MB. Free memory was 47.4 MB in the beginning and 30.6 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 17128.20 ms. Allocated memory was 83.9 MB in the beginning and 211.8 MB in the end (delta: 127.9 MB). Free memory was 30.2 MB in the beginning and 155.5 MB in the end (delta: -125.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.89 ms. Allocated memory is still 211.8 MB. Free memory is still 155.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 6 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[t] and consists of 9 locations. One deterministic module has affine ranking function -2 * s + 5 * unknown-#length-unknown[__builtin_alloca (out_len)] and consists of 9 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * t and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.0s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 15.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 55 SDtfs, 120 SDslu, 58 SDs, 0 SdLazy, 86 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital253 mio100 ax100 hnf99 lsp96 ukn85 mio100 lsp49 div115 bol100 ite100 ukn100 eq184 hnf83 smp98 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...