./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/string-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/string-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 32bit --witnessprinter.graph.data.programhash b312eb4f8caa7cb61d3a06c0594e4f86d10948be 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 18:38:59,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 18:38:59,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 18:38:59,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 18:38:59,098 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 18:38:59,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 18:38:59,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 18:38:59,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 18:38:59,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 18:38:59,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 18:38:59,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 18:38:59,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 18:38:59,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 18:38:59,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 18:38:59,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 18:38:59,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 18:38:59,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 18:38:59,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 18:38:59,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 18:38:59,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 18:38:59,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 18:38:59,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 18:38:59,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 18:38:59,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 18:38:59,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 18:38:59,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 18:38:59,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 18:38:59,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 18:38:59,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 18:38:59,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 18:38:59,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 18:38:59,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 18:38:59,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 18:38:59,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 18:38:59,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 18:38:59,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 18:38:59,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 18:38:59,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 18:38:59,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 18:38:59,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 18:38:59,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 18:38:59,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 18:38:59,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 18:38:59,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 18:38:59,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 18:38:59,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 18:38:59,261 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 18:38:59,262 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 18:38:59,262 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 18:38:59,262 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 18:38:59,263 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 18:38:59,263 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 18:38:59,265 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 18:38:59,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 18:38:59,265 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 18:38:59,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 18:38:59,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 18:38:59,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 18:38:59,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 18:38:59,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 18:38:59,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 18:38:59,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 18:38:59,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 18:38:59,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 18:38:59,268 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 18:38:59,270 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 18:38:59,270 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 18:38:59,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 18:38:59,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 18:38:59,273 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 18:38:59,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 18:38:59,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 18:38:59,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 18:38:59,277 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 18:38:59,278 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 18:38:59,278 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_c9dba208-4b5d-4632-907e-87571c84eab7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b312eb4f8caa7cb61d3a06c0594e4f86d10948be [2020-11-29 18:38:59,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 18:38:59,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 18:38:59,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 18:38:59,717 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 18:38:59,718 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 18:38:59,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/../../sv-benchmarks/c/loops/string-1.i [2020-11-29 18:38:59,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/data/97726bfce/a2d5fd529ecb4645a4e14a5c704b901f/FLAGe8a413cd3 [2020-11-29 18:39:00,403 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 18:39:00,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/sv-benchmarks/c/loops/string-1.i [2020-11-29 18:39:00,412 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/data/97726bfce/a2d5fd529ecb4645a4e14a5c704b901f/FLAGe8a413cd3 [2020-11-29 18:39:00,707 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/data/97726bfce/a2d5fd529ecb4645a4e14a5c704b901f [2020-11-29 18:39:00,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 18:39:00,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 18:39:00,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 18:39:00,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 18:39:00,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 18:39:00,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:00" (1/1) ... [2020-11-29 18:39:00,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1d15b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:00, skipping insertion in model container [2020-11-29 18:39:00,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:00" (1/1) ... [2020-11-29 18:39:00,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 18:39:00,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 18:39:01,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:39:01,100 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 18:39:01,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 18:39:01,146 INFO L208 MainTranslator]: Completed translation [2020-11-29 18:39:01,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01 WrapperNode [2020-11-29 18:39:01,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 18:39:01,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 18:39:01,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 18:39:01,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 18:39:01,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 18:39:01,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 18:39:01,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 18:39:01,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 18:39:01,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... [2020-11-29 18:39:01,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 18:39:01,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 18:39:01,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 18:39:01,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 18:39:01,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 18:39:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 18:39:01,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 18:39:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 18:39:01,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 18:39:01,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 18:39:01,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 18:39:01,779 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 18:39:01,786 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-29 18:39:01,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:01 BoogieIcfgContainer [2020-11-29 18:39:01,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 18:39:01,790 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 18:39:01,790 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 18:39:01,801 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 18:39:01,802 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:39:01,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 06:39:00" (1/3) ... [2020-11-29 18:39:01,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7570efc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:39:01, skipping insertion in model container [2020-11-29 18:39:01,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:39:01,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:01" (2/3) ... [2020-11-29 18:39:01,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7570efc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 06:39:01, skipping insertion in model container [2020-11-29 18:39:01,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 18:39:01,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:01" (3/3) ... [2020-11-29 18:39:01,808 INFO L373 chiAutomizerObserver]: Analyzing ICFG string-1.i [2020-11-29 18:39:01,866 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 18:39:01,866 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 18:39:01,867 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 18:39:01,867 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 18:39:01,867 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 18:39:01,867 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 18:39:01,867 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 18:39:01,868 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 18:39:01,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-11-29 18:39:01,909 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2020-11-29 18:39:01,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:01,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:01,917 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 18:39:01,917 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:01,917 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 18:39:01,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-11-29 18:39:01,921 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2020-11-29 18:39:01,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:01,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:01,922 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 18:39:01,922 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:01,929 INFO L794 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 11#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8#L33-3true [2020-11-29 18:39:01,929 INFO L796 eck$LassoCheckResult]: Loop: 8#L33-3true assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 19#L33-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8#L33-3true [2020-11-29 18:39:01,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:01,937 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 18:39:01,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:01,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198960542] [2020-11-29 18:39:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:02,064 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:02,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:02,159 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:02,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:02,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-11-29 18:39:02,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:02,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716124926] [2020-11-29 18:39:02,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:02,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:02,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:02,212 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:02,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:02,215 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-29 18:39:02,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:02,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483230410] [2020-11-29 18:39:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:02,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:02,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:02,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:02,858 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-11-29 18:39:03,054 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-11-29 18:39:03,081 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:03,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:03,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:03,083 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:03,083 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:39:03,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:03,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:03,084 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:03,084 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration1_Lasso [2020-11-29 18:39:03,084 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:03,084 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:03,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,502 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-11-29 18:39:03,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:03,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:04,079 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:39:04,085 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:04,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:04,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:04,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:04,172 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:04,220 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:04,292 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:04,297 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,340 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:04,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,389 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:04,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:04,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:04,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:04,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:04,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:04,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:04,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,601 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,601 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,601 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:04,649 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 Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:04,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:04,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:04,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,699 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:04,784 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:04,836 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:04,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:04,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:04,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:04,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:04,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:04,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:04,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:04,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:04,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:04,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:04,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:05,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:05,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,054 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 [2020-11-29 18:39:05,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:05,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:05,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:05,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:05,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:05,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:05,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,114 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 [2020-11-29 18:39:05,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:05,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:05,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:05,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:05,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:05,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:05,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:05,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:05,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:05,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:05,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:05,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:05,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:05,226 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:05,276 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:05,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:05,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:05,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:05,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:05,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:05,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:05,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:05,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:05,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:05,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:05,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:05,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:05,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:05,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:05,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:05,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:05,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:05,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:05,391 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:05,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:05,403 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:39:05,616 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 18:39:05,617 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:05,629 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:05,634 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:39:05,635 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:39:05,636 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1, ULTIMATE.start_main_~i~0) = 9*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 18:39:05,733 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-11-29 18:39:05,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:39:05,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:05,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:39:05,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:05,847 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:39:05,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:05,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:05,917 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:39:05,918 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states. Second operand 3 states. [2020-11-29 18:39:05,998 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states.. Second operand 3 states. Result 54 states and 86 transitions. Complement of second has 8 states. [2020-11-29 18:39:05,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:39:06,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:39:06,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-11-29 18:39:06,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 18:39:06,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:06,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 18:39:06,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:06,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-29 18:39:06,005 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:06,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 86 transitions. [2020-11-29 18:39:06,012 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:06,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 19 states and 28 transitions. [2020-11-29 18:39:06,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-11-29 18:39:06,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-11-29 18:39:06,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2020-11-29 18:39:06,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:39:06,021 INFO L691 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-11-29 18:39:06,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2020-11-29 18:39:06,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-29 18:39:06,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 18:39:06,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2020-11-29 18:39:06,048 INFO L714 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-11-29 18:39:06,049 INFO L594 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-11-29 18:39:06,049 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 18:39:06,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2020-11-29 18:39:06,050 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:06,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:06,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:06,050 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 18:39:06,050 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:06,051 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 175#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 172#L33-3 assume !(main_~i~0 < 5); 170#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 171#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 182#L37-3 [2020-11-29 18:39:06,051 INFO L796 eck$LassoCheckResult]: Loop: 182#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 183#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 182#L37-3 [2020-11-29 18:39:06,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:06,052 INFO L82 PathProgramCache]: Analyzing trace with hash 28696938, now seen corresponding path program 1 times [2020-11-29 18:39:06,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:06,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147414306] [2020-11-29 18:39:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:06,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:06,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147414306] [2020-11-29 18:39:06,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:39:06,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 18:39:06,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501613260] [2020-11-29 18:39:06,118 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:39:06,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:06,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-11-29 18:39:06,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:06,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048615200] [2020-11-29 18:39:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:06,126 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:06,147 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:06,149 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:06,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:06,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 18:39:06,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 18:39:06,226 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-11-29 18:39:06,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:06,298 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2020-11-29 18:39:06,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 18:39:06,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2020-11-29 18:39:06,303 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:06,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 30 transitions. [2020-11-29 18:39:06,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-29 18:39:06,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-11-29 18:39:06,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2020-11-29 18:39:06,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:39:06,306 INFO L691 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2020-11-29 18:39:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2020-11-29 18:39:06,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2020-11-29 18:39:06,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 18:39:06,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2020-11-29 18:39:06,310 INFO L714 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-11-29 18:39:06,310 INFO L594 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-11-29 18:39:06,310 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 18:39:06,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2020-11-29 18:39:06,311 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:06,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:06,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:06,316 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:06,316 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:06,316 INFO L794 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 224#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 221#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 222#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 223#L33-3 assume !(main_~i~0 < 5); 219#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 220#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 231#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 232#L37-2 [2020-11-29 18:39:06,316 INFO L796 eck$LassoCheckResult]: Loop: 232#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 233#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 232#L37-2 [2020-11-29 18:39:06,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:06,317 INFO L82 PathProgramCache]: Analyzing trace with hash 265181045, now seen corresponding path program 1 times [2020-11-29 18:39:06,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:06,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61016910] [2020-11-29 18:39:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:06,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:06,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61016910] [2020-11-29 18:39:06,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840813577] [2020-11-29 18:39:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:39:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:06,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 18:39:06,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:06,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:06,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:39:06,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-11-29 18:39:06,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374928389] [2020-11-29 18:39:06,515 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:39:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:06,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 2 times [2020-11-29 18:39:06,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:06,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73490039] [2020-11-29 18:39:06,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:06,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:06,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:06,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:06,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:06,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 18:39:06,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-29 18:39:06,580 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-11-29 18:39:06,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:06,668 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-11-29 18:39:06,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:39:06,669 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2020-11-29 18:39:06,670 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:06,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2020-11-29 18:39:06,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-11-29 18:39:06,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-11-29 18:39:06,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2020-11-29 18:39:06,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:39:06,673 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-11-29 18:39:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2020-11-29 18:39:06,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-11-29 18:39:06,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-11-29 18:39:06,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-11-29 18:39:06,676 INFO L714 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-11-29 18:39:06,676 INFO L594 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-11-29 18:39:06,676 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 18:39:06,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2020-11-29 18:39:06,677 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:06,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:06,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:06,678 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:06,678 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:06,678 INFO L794 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 304#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 300#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 301#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 302#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 303#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 315#L33-3 assume !(main_~i~0 < 5); 298#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 299#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 313#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 314#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 311#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 312#L37-2 [2020-11-29 18:39:06,679 INFO L796 eck$LassoCheckResult]: Loop: 312#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 316#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 312#L37-2 [2020-11-29 18:39:06,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:06,679 INFO L82 PathProgramCache]: Analyzing trace with hash 780717205, now seen corresponding path program 1 times [2020-11-29 18:39:06,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:06,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951817233] [2020-11-29 18:39:06,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:39:06,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951817233] [2020-11-29 18:39:06,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229752566] [2020-11-29 18:39:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:39:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:06,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:39:06,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 18:39:06,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:39:06,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-11-29 18:39:06,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585321692] [2020-11-29 18:39:06,858 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:39:06,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:06,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 3 times [2020-11-29 18:39:06,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:06,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486699983] [2020-11-29 18:39:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:06,865 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:06,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:06,872 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:06,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:06,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 18:39:06,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-29 18:39:06,913 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-11-29 18:39:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:07,008 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-11-29 18:39:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 18:39:07,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2020-11-29 18:39:07,010 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:07,011 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 44 transitions. [2020-11-29 18:39:07,012 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-11-29 18:39:07,012 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-11-29 18:39:07,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2020-11-29 18:39:07,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:39:07,013 INFO L691 BuchiCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-11-29 18:39:07,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2020-11-29 18:39:07,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2020-11-29 18:39:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 18:39:07,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-11-29 18:39:07,016 INFO L714 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-11-29 18:39:07,017 INFO L594 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-11-29 18:39:07,017 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 18:39:07,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2020-11-29 18:39:07,018 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:07,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:07,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:07,025 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2020-11-29 18:39:07,026 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:07,026 INFO L794 eck$LassoCheckResult]: Stem: 411#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 406#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 402#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 403#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 421#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 407#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 404#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 405#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 418#L33-3 assume !(main_~i~0 < 5); 400#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 401#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 416#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 422#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 420#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 417#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 414#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 415#L37-2 [2020-11-29 18:39:07,027 INFO L796 eck$LassoCheckResult]: Loop: 415#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 419#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 415#L37-2 [2020-11-29 18:39:07,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:07,029 INFO L82 PathProgramCache]: Analyzing trace with hash 2111137973, now seen corresponding path program 2 times [2020-11-29 18:39:07,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:07,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807234110] [2020-11-29 18:39:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 18:39:07,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807234110] [2020-11-29 18:39:07,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073936610] [2020-11-29 18:39:07,156 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:39:07,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 18:39:07,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:39:07,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:39:07,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 18:39:07,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:39:07,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-11-29 18:39:07,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124748872] [2020-11-29 18:39:07,291 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:39:07,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:07,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 4 times [2020-11-29 18:39:07,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:07,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764173285] [2020-11-29 18:39:07,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:07,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:07,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:07,303 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:07,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:07,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 18:39:07,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-11-29 18:39:07,347 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand 7 states. [2020-11-29 18:39:07,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:07,458 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2020-11-29 18:39:07,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:39:07,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2020-11-29 18:39:07,461 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:07,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 51 transitions. [2020-11-29 18:39:07,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-11-29 18:39:07,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-11-29 18:39:07,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 51 transitions. [2020-11-29 18:39:07,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:39:07,463 INFO L691 BuchiCegarLoop]: Abstraction has 42 states and 51 transitions. [2020-11-29 18:39:07,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 51 transitions. [2020-11-29 18:39:07,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-11-29 18:39:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-29 18:39:07,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2020-11-29 18:39:07,468 INFO L714 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-11-29 18:39:07,468 INFO L594 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-11-29 18:39:07,468 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 18:39:07,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. [2020-11-29 18:39:07,469 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:07,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:07,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:07,470 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 1, 1, 1, 1, 1] [2020-11-29 18:39:07,470 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:07,470 INFO L794 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 531#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 527#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 528#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 529#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 530#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 551#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 550#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 549#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 542#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 541#L33-3 assume !(main_~i~0 < 5); 525#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 526#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 538#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 539#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 540#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 548#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 547#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 546#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 545#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 544#L37-2 [2020-11-29 18:39:07,470 INFO L796 eck$LassoCheckResult]: Loop: 544#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 543#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 544#L37-2 [2020-11-29 18:39:07,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:07,471 INFO L82 PathProgramCache]: Analyzing trace with hash 213314517, now seen corresponding path program 3 times [2020-11-29 18:39:07,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:07,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692800311] [2020-11-29 18:39:07,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 18:39:07,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692800311] [2020-11-29 18:39:07,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270151540] [2020-11-29 18:39:07,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:39:07,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-11-29 18:39:07,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:39:07,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:39:07,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 18:39:07,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:39:07,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-11-29 18:39:07,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408283364] [2020-11-29 18:39:07,699 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:39:07,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:07,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 5 times [2020-11-29 18:39:07,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:07,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294866075] [2020-11-29 18:39:07,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:07,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:07,707 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:07,718 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:07,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:07,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:39:07,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-11-29 18:39:07,764 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. cyclomatic complexity: 10 Second operand 8 states. [2020-11-29 18:39:07,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:07,894 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2020-11-29 18:39:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:39:07,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2020-11-29 18:39:07,896 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:07,897 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2020-11-29 18:39:07,897 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-11-29 18:39:07,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-11-29 18:39:07,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2020-11-29 18:39:07,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:39:07,898 INFO L691 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-11-29 18:39:07,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2020-11-29 18:39:07,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-11-29 18:39:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 18:39:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-11-29 18:39:07,903 INFO L714 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-11-29 18:39:07,903 INFO L594 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-11-29 18:39:07,903 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 18:39:07,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 41 transitions. [2020-11-29 18:39:07,906 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:07,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:07,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:07,907 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 1, 1, 1, 1, 1] [2020-11-29 18:39:07,907 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:07,907 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 677#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 673#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 674#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 675#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 676#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 698#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 696#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 694#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 692#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 691#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 688#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 687#L33-3 assume !(main_~i~0 < 5); 671#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 672#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 684#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 685#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 686#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 701#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 700#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 699#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 697#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 695#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 693#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L37-2 [2020-11-29 18:39:07,907 INFO L796 eck$LassoCheckResult]: Loop: 690#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 689#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L37-2 [2020-11-29 18:39:07,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:07,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1212159477, now seen corresponding path program 4 times [2020-11-29 18:39:07,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:07,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26686911] [2020-11-29 18:39:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:07,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:07,990 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,003 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:08,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:08,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 6 times [2020-11-29 18:39:08,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:08,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674550434] [2020-11-29 18:39:08,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,031 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:08,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:08,037 INFO L82 PathProgramCache]: Analyzing trace with hash 949121171, now seen corresponding path program 5 times [2020-11-29 18:39:08,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:08,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465269408] [2020-11-29 18:39:08,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-29 18:39:08,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465269408] [2020-11-29 18:39:08,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638979170] [2020-11-29 18:39:08,215 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:39:08,374 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-11-29 18:39:08,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:39:08,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 18:39:08,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-11-29 18:39:08,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 18:39:08,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2020-11-29 18:39:08,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569558861] [2020-11-29 18:39:08,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:08,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 18:39:08,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:39:08,463 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. cyclomatic complexity: 10 Second operand 8 states. [2020-11-29 18:39:08,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:08,632 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2020-11-29 18:39:08,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 18:39:08,633 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2020-11-29 18:39:08,634 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-11-29 18:39:08,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 57 transitions. [2020-11-29 18:39:08,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-11-29 18:39:08,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2020-11-29 18:39:08,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 57 transitions. [2020-11-29 18:39:08,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:39:08,636 INFO L691 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2020-11-29 18:39:08,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 57 transitions. [2020-11-29 18:39:08,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2020-11-29 18:39:08,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-29 18:39:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-11-29 18:39:08,646 INFO L714 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-11-29 18:39:08,646 INFO L594 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-11-29 18:39:08,646 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 18:39:08,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 39 transitions. [2020-11-29 18:39:08,647 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-11-29 18:39:08,647 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:08,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:08,648 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:08,648 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:08,649 INFO L794 eck$LassoCheckResult]: Stem: 853#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 848#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 846#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 847#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 849#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 872#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 870#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 868#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 866#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 864#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 862#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 860#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 859#L33-3 assume !(main_~i~0 < 5); 844#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 845#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 856#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 857#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 858#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 874#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 873#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 871#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 869#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 867#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 865#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 863#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 861#L37-3 assume !(main_~i~0 < 5); 855#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 841#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 842#L42-3 [2020-11-29 18:39:08,649 INFO L796 eck$LassoCheckResult]: Loop: 842#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 843#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 842#L42-3 [2020-11-29 18:39:08,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:08,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1572377782, now seen corresponding path program 1 times [2020-11-29 18:39:08,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:08,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743287551] [2020-11-29 18:39:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,700 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,757 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:08,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:08,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2406, now seen corresponding path program 1 times [2020-11-29 18:39:08,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:08,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526392475] [2020-11-29 18:39:08,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,777 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:08,778 INFO L82 PathProgramCache]: Analyzing trace with hash -773438245, now seen corresponding path program 1 times [2020-11-29 18:39:08,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:08,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638497229] [2020-11-29 18:39:08,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:08,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:08,865 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:16,104 WARN L193 SmtUtils]: Spent 7.20 s on a formula simplification. DAG size of input: 248 DAG size of output: 189 [2020-11-29 18:39:16,805 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-11-29 18:39:16,812 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:16,812 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:16,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:16,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:16,812 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:39:16,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:16,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:16,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:16,812 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration8_Lasso [2020-11-29 18:39:16,813 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:16,813 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:16,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:16,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:17,377 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-11-29 18:39:17,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:17,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:17,864 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:39:17,865 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:17,877 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:17,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:17,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:17,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:17,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:17,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:17,879 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:17,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:17,881 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:17,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:17,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:17,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:17,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:17,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:17,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:17,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:17,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:17,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:17,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:17,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:17,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:17,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:17,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:17,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:17,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:17,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:17,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:17,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:17,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:17,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:17,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:17,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:17,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:17,972 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:17,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,006 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,041 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:18,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,124 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:18,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,185 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,185 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,187 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:18,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,244 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,246 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:18,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,359 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:18,359 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:18,364 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,448 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:18,451 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:18,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:18,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:18,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,548 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:18,610 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,616 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:18,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:18,710 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 [2020-11-29 18:39:18,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,714 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:18,714 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:18,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:18,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:18,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:18,762 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,791 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 [2020-11-29 18:39:18,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:18,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:18,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:18,794 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,821 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:18,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:18,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,859 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:18,859 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:18,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:18,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:18,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:18,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:18,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:18,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:18,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:18,901 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:18,924 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:39:18,956 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 18:39:18,956 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) [2020-11-29 18:39:18,963 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:18,967 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:39:18,967 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:39:18,967 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_A~0.offset, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2, ULTIMATE.start_main_~nc_A~0) = -1*ULTIMATE.start_main_~#string_A~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2 - 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2020-11-29 18:39:19,041 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-11-29 18:39:19,043 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:39:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:19,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:39:19,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:19,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:39:19,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:19,140 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:39:19,140 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-11-29 18:39:19,174 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 44 states and 51 transitions. Complement of second has 4 states. [2020-11-29 18:39:19,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:39:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:39:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-11-29 18:39:19,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 2 letters. [2020-11-29 18:39:19,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:19,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 30 letters. Loop has 2 letters. [2020-11-29 18:39:19,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:19,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 4 letters. [2020-11-29 18:39:19,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:19,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 51 transitions. [2020-11-29 18:39:19,179 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:39:19,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 42 transitions. [2020-11-29 18:39:19,180 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-11-29 18:39:19,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-11-29 18:39:19,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 42 transitions. [2020-11-29 18:39:19,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:19,181 INFO L691 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-11-29 18:39:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 42 transitions. [2020-11-29 18:39:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-29 18:39:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-29 18:39:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-11-29 18:39:19,194 INFO L714 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-11-29 18:39:19,194 INFO L594 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-11-29 18:39:19,195 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 18:39:19,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 42 transitions. [2020-11-29 18:39:19,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:39:19,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:19,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:19,197 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:19,199 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:19,199 INFO L794 eck$LassoCheckResult]: Stem: 1097#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1092#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1090#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1091#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1093#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1118#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1117#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1116#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1115#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1114#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1113#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1111#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1109#L33-3 assume !(main_~i~0 < 5); 1088#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1089#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1102#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1103#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1100#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1101#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1112#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1110#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1108#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1107#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1106#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1105#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1104#L37-3 assume !(main_~i~0 < 5); 1099#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1083#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1084#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1086#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1081#L42-4 main_~nc_B~0 := 0; 1082#L46-3 [2020-11-29 18:39:19,200 INFO L796 eck$LassoCheckResult]: Loop: 1082#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1098#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1082#L46-3 [2020-11-29 18:39:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1793218173, now seen corresponding path program 1 times [2020-11-29 18:39:19,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:19,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433006624] [2020-11-29 18:39:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:19,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:19,261 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:19,273 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:19,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:19,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2854, now seen corresponding path program 1 times [2020-11-29 18:39:19,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:19,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838219600] [2020-11-29 18:39:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:19,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:19,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:19,286 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:19,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:19,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1000780450, now seen corresponding path program 1 times [2020-11-29 18:39:19,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:19,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898505916] [2020-11-29 18:39:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:19,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:19,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:19,363 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:27,286 WARN L193 SmtUtils]: Spent 7.88 s on a formula simplification. DAG size of input: 259 DAG size of output: 197 [2020-11-29 18:39:28,042 WARN L193 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2020-11-29 18:39:28,046 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:28,046 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:28,046 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:28,046 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:28,046 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:39:28,046 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:28,046 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:28,046 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:28,046 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration9_Lasso [2020-11-29 18:39:28,046 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:28,047 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:28,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,827 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-11-29 18:39:28,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:28,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:29,418 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:39:29,419 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:29,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:29,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:29,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:29,465 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 [2020-11-29 18:39:29,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:29,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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 [2020-11-29 18:39:29,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/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) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:29,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:29,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:29,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:29,722 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,782 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,792 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:29,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,851 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:29,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:29,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,885 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:29,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:29,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:29,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:29,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:29,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:29,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:29,904 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:39:29,955 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-11-29 18:39:29,955 INFO L444 ModelExtractionUtils]: 1 out of 25 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:29,958 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:39:29,965 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:39:29,965 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:39:29,965 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_B~0.offset, ULTIMATE.start_main_~nc_B~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3) = -1*ULTIMATE.start_main_~#string_B~0.offset - 1*ULTIMATE.start_main_~nc_B~0 + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3 Supporting invariants [] [2020-11-29 18:39:30,086 INFO L297 tatePredicateManager]: 26 out of 26 supporting invariants were superfluous and have been removed [2020-11-29 18:39:30,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:39:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:30,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:39:30,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:30,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:39:30,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:30,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:30,165 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:39:30,165 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-11-29 18:39:30,188 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 43 states and 50 transitions. Complement of second has 4 states. [2020-11-29 18:39:30,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:39:30,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:39:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-11-29 18:39:30,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 31 letters. Loop has 2 letters. [2020-11-29 18:39:30,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:30,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 33 letters. Loop has 2 letters. [2020-11-29 18:39:30,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:30,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 31 letters. Loop has 4 letters. [2020-11-29 18:39:30,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:30,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 50 transitions. [2020-11-29 18:39:30,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:30,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 40 states and 45 transitions. [2020-11-29 18:39:30,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-11-29 18:39:30,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-11-29 18:39:30,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 45 transitions. [2020-11-29 18:39:30,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:30,194 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-11-29 18:39:30,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 45 transitions. [2020-11-29 18:39:30,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-29 18:39:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 18:39:30,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-11-29 18:39:30,197 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-11-29 18:39:30,197 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-11-29 18:39:30,198 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-29 18:39:30,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 45 transitions. [2020-11-29 18:39:30,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:30,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:30,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:30,200 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:30,200 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:30,200 INFO L794 eck$LassoCheckResult]: Stem: 1401#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1397#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1394#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1395#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1396#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1424#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1423#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1422#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1421#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1419#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1417#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1415#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1413#L33-3 assume !(main_~i~0 < 5); 1392#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1393#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1408#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1409#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1406#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1407#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1420#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1418#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1416#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1414#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1412#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1411#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1410#L37-3 assume !(main_~i~0 < 5); 1405#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1387#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1388#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1390#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1385#L42-4 main_~nc_B~0 := 0; 1386#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1403#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1398#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1399#L55-2 [2020-11-29 18:39:30,200 INFO L796 eck$LassoCheckResult]: Loop: 1399#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1400#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1399#L55-2 [2020-11-29 18:39:30,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,201 INFO L82 PathProgramCache]: Analyzing trace with hash 959422888, now seen corresponding path program 1 times [2020-11-29 18:39:30,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296356540] [2020-11-29 18:39:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,220 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,252 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,260 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,263 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 1 times [2020-11-29 18:39:30,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603926934] [2020-11-29 18:39:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,275 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:30,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1412570677, now seen corresponding path program 1 times [2020-11-29 18:39:30,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826567183] [2020-11-29 18:39:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-29 18:39:30,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826567183] [2020-11-29 18:39:30,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:39:30,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:39:30,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667805490] [2020-11-29 18:39:30,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:30,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:39:30,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:39:30,437 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-11-29 18:39:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:30,461 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-11-29 18:39:30,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:39:30,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 48 transitions. [2020-11-29 18:39:30,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:30,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 45 transitions. [2020-11-29 18:39:30,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-11-29 18:39:30,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-11-29 18:39:30,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 45 transitions. [2020-11-29 18:39:30,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:30,464 INFO L691 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-11-29 18:39:30,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 45 transitions. [2020-11-29 18:39:30,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-11-29 18:39:30,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 18:39:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-11-29 18:39:30,467 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-11-29 18:39:30,467 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-11-29 18:39:30,467 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-29 18:39:30,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 44 transitions. [2020-11-29 18:39:30,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:30,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:30,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:30,474 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:30,474 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:30,475 INFO L794 eck$LassoCheckResult]: Stem: 1494#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1489#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1487#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1488#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1490#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1517#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1516#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1515#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1514#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1513#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1511#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1509#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1507#L33-3 assume !(main_~i~0 < 5); 1485#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1486#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1499#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1500#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1501#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1512#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1510#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1508#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1506#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1505#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1504#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1503#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1502#L37-3 assume !(main_~i~0 < 5); 1498#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1480#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1481#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1483#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1478#L42-4 main_~nc_B~0 := 0; 1479#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1495#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1496#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1497#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1491#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1492#L55-2 [2020-11-29 18:39:30,475 INFO L796 eck$LassoCheckResult]: Loop: 1492#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1493#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1492#L55-2 [2020-11-29 18:39:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1412524189, now seen corresponding path program 1 times [2020-11-29 18:39:30,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283369900] [2020-11-29 18:39:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:30,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,582 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 2 times [2020-11-29 18:39:30,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055335349] [2020-11-29 18:39:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,596 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:30,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,596 INFO L82 PathProgramCache]: Analyzing trace with hash -226077498, now seen corresponding path program 1 times [2020-11-29 18:39:30,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066138095] [2020-11-29 18:39:30,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-29 18:39:30,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066138095] [2020-11-29 18:39:30,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 18:39:30,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 18:39:30,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334792450] [2020-11-29 18:39:30,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:30,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 18:39:30,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 18:39:30,756 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-11-29 18:39:30,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:30,789 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-11-29 18:39:30,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 18:39:30,791 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 53 transitions. [2020-11-29 18:39:30,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:30,792 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 41 states and 44 transitions. [2020-11-29 18:39:30,792 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-11-29 18:39:30,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-11-29 18:39:30,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 44 transitions. [2020-11-29 18:39:30,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:30,793 INFO L691 BuchiCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-11-29 18:39:30,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 44 transitions. [2020-11-29 18:39:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-11-29 18:39:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 18:39:30,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-11-29 18:39:30,796 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-11-29 18:39:30,796 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-11-29 18:39:30,796 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-29 18:39:30,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 43 transitions. [2020-11-29 18:39:30,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:30,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:30,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:30,798 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:30,798 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:30,798 INFO L794 eck$LassoCheckResult]: Stem: 1592#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1588#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1585#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1586#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1587#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1615#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1614#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1613#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1612#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1611#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1609#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1607#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1605#L33-3 assume !(main_~i~0 < 5); 1583#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1584#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1597#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1598#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1599#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1610#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1608#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1606#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1604#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1603#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1602#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1601#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1600#L37-3 assume !(main_~i~0 < 5); 1596#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1578#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1579#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1580#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1581#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1582#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1576#L42-4 main_~nc_B~0 := 0; 1577#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1593#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1594#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1595#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1589#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1590#L55-2 [2020-11-29 18:39:30,798 INFO L796 eck$LassoCheckResult]: Loop: 1590#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1591#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1590#L55-2 [2020-11-29 18:39:30,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,798 INFO L82 PathProgramCache]: Analyzing trace with hash 489706120, now seen corresponding path program 1 times [2020-11-29 18:39:30,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043527357] [2020-11-29 18:39:30,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,899 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:30,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,900 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 3 times [2020-11-29 18:39:30,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691442251] [2020-11-29 18:39:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,909 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:30,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:30,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818645, now seen corresponding path program 1 times [2020-11-29 18:39:30,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:30,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266254872] [2020-11-29 18:39:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,940 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:30,979 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:30,987 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:41,016 WARN L193 SmtUtils]: Spent 9.96 s on a formula simplification. DAG size of input: 296 DAG size of output: 225 [2020-11-29 18:39:41,951 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-11-29 18:39:41,954 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:41,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:41,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:41,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:41,955 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:39:41,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:41,955 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:41,955 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:41,955 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration12_Lasso [2020-11-29 18:39:41,955 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:41,955 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:41,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:41,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,306 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2020-11-29 18:39:43,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:43,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:44,179 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:39:44,179 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,224 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,268 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,302 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,330 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,368 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:39:44,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,410 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,455 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,536 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,623 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,623 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,623 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,628 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,657 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,657 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,657 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,659 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 83 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 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,685 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,688 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 84 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 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 85 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 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,755 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,755 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 86 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 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,789 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,790 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 87 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 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,826 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 88 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 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,867 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,868 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,869 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,869 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,872 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 89 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 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,899 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:39:44,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:39:44,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:39:44,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 90 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 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:44,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:39:44,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:39:44,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:39:44,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:39:44,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:39:44,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:39:44,946 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:39:44,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:39:45,044 INFO L443 ModelExtractionUtils]: Simplification made 30 calls to the SMT solver. [2020-11-29 18:39:45,044 INFO L444 ModelExtractionUtils]: 2 out of 31 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 91 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 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:45,046 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:39:45,049 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 18:39:45,049 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:39:45,049 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~nc_B~0 - 1*ULTIMATE.start_main_~nc_A~0 >= 0] [2020-11-29 18:39:45,252 INFO L297 tatePredicateManager]: 36 out of 39 supporting invariants were superfluous and have been removed [2020-11-29 18:39:45,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:45,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:39:45,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:45,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:39:45,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:39:45,576 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2020-11-29 18:39:45,576 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6 Second operand 9 states. [2020-11-29 18:39:45,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6. Second operand 9 states. Result 52 states and 59 transitions. Complement of second has 12 states. [2020-11-29 18:39:45,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:39:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-29 18:39:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 30 transitions. [2020-11-29 18:39:45,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 30 transitions. Stem has 38 letters. Loop has 2 letters. [2020-11-29 18:39:45,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:45,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 30 transitions. Stem has 40 letters. Loop has 2 letters. [2020-11-29 18:39:45,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:45,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 30 transitions. Stem has 38 letters. Loop has 4 letters. [2020-11-29 18:39:45,855 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:39:45,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 59 transitions. [2020-11-29 18:39:45,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:45,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 59 transitions. [2020-11-29 18:39:45,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2020-11-29 18:39:45,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-11-29 18:39:45,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 59 transitions. [2020-11-29 18:39:45,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:45,858 INFO L691 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2020-11-29 18:39:45,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 59 transitions. [2020-11-29 18:39:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-11-29 18:39:45,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-11-29 18:39:45,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2020-11-29 18:39:45,862 INFO L714 BuchiCegarLoop]: Abstraction has 48 states and 54 transitions. [2020-11-29 18:39:45,862 INFO L594 BuchiCegarLoop]: Abstraction has 48 states and 54 transitions. [2020-11-29 18:39:45,862 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-29 18:39:45,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 54 transitions. [2020-11-29 18:39:45,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:45,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:45,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:45,864 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:45,864 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:45,865 INFO L794 eck$LassoCheckResult]: Stem: 2012#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2005#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2002#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2003#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2004#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2040#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2039#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2038#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2037#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2036#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2034#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2026#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2023#L33-3 assume !(main_~i~0 < 5); 2000#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2001#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2018#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2019#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2020#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2035#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2033#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2032#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2031#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2029#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2027#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2024#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2021#L37-3 assume !(main_~i~0 < 5); 2017#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1995#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1996#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1997#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1998#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1999#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1993#L42-4 main_~nc_B~0 := 0; 1994#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2013#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2030#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2028#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2025#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2022#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2011#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2007#L55-2 [2020-11-29 18:39:45,865 INFO L796 eck$LassoCheckResult]: Loop: 2007#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2008#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2007#L55-2 [2020-11-29 18:39:45,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:45,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818643, now seen corresponding path program 1 times [2020-11-29 18:39:45,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:45,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778614226] [2020-11-29 18:39:45,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:45,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:45,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:45,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:45,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:45,915 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 4 times [2020-11-29 18:39:45,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:45,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96991146] [2020-11-29 18:39:45,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:45,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:45,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:45,923 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:45,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1873154672, now seen corresponding path program 1 times [2020-11-29 18:39:45,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:45,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348290348] [2020-11-29 18:39:45,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-29 18:39:46,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348290348] [2020-11-29 18:39:46,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736658414] [2020-11-29 18:39:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:39:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:46,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:39:46,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-11-29 18:39:46,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:39:46,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-29 18:39:46,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563130270] [2020-11-29 18:39:46,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:46,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 18:39:46,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-29 18:39:46,295 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. cyclomatic complexity: 10 Second operand 9 states. [2020-11-29 18:39:46,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:46,412 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2020-11-29 18:39:46,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 18:39:46,416 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 78 transitions. [2020-11-29 18:39:46,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:46,418 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 51 states and 57 transitions. [2020-11-29 18:39:46,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2020-11-29 18:39:46,419 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2020-11-29 18:39:46,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 57 transitions. [2020-11-29 18:39:46,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:46,419 INFO L691 BuchiCegarLoop]: Abstraction has 51 states and 57 transitions. [2020-11-29 18:39:46,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 57 transitions. [2020-11-29 18:39:46,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2020-11-29 18:39:46,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-11-29 18:39:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2020-11-29 18:39:46,423 INFO L714 BuchiCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-11-29 18:39:46,423 INFO L594 BuchiCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-11-29 18:39:46,423 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-29 18:39:46,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 56 transitions. [2020-11-29 18:39:46,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:46,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:46,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:46,425 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:46,425 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:46,425 INFO L794 eck$LassoCheckResult]: Stem: 2269#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2261#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2258#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2259#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2262#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2297#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2295#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2293#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2291#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2289#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2286#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2284#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2281#L33-3 assume !(main_~i~0 < 5); 2256#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2257#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2275#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2276#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2278#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2296#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2294#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2292#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2290#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2287#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2285#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2282#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2279#L37-3 assume !(main_~i~0 < 5); 2274#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2251#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2252#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2253#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2254#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2255#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2298#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2260#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2249#L42-4 main_~nc_B~0 := 0; 2250#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2270#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2271#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2272#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2283#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2280#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2268#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2264#L55-2 [2020-11-29 18:39:46,425 INFO L796 eck$LassoCheckResult]: Loop: 2264#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2265#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2264#L55-2 [2020-11-29 18:39:46,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:46,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1199867054, now seen corresponding path program 2 times [2020-11-29 18:39:46,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:46,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222583069] [2020-11-29 18:39:46,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:39:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-29 18:39:46,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222583069] [2020-11-29 18:39:46,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337355793] [2020-11-29 18:39:46,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:39:46,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 18:39:46,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:39:46,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 18:39:46,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:39:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-29 18:39:46,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:39:46,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-11-29 18:39:46,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566973695] [2020-11-29 18:39:46,666 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:39:46,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:46,667 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 5 times [2020-11-29 18:39:46,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:46,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215980133] [2020-11-29 18:39:46,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,671 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,673 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,674 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:46,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:39:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 18:39:46,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-11-29 18:39:46,775 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. cyclomatic complexity: 10 Second operand 10 states. [2020-11-29 18:39:46,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:39:46,839 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2020-11-29 18:39:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 18:39:46,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2020-11-29 18:39:46,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:46,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 49 transitions. [2020-11-29 18:39:46,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-11-29 18:39:46,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-11-29 18:39:46,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 49 transitions. [2020-11-29 18:39:46,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:39:46,842 INFO L691 BuchiCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-11-29 18:39:46,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 49 transitions. [2020-11-29 18:39:46,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-11-29 18:39:46,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-29 18:39:46,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-11-29 18:39:46,846 INFO L714 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-11-29 18:39:46,846 INFO L594 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-11-29 18:39:46,846 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-11-29 18:39:46,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 47 transitions. [2020-11-29 18:39:46,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:39:46,847 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:39:46,847 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:39:46,848 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:39:46,848 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:39:46,848 INFO L794 eck$LassoCheckResult]: Stem: 2500#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2495#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2492#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2493#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2496#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2523#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2521#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2520#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2519#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2518#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2516#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2514#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2512#L33-3 assume !(main_~i~0 < 5); 2490#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2491#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2505#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2506#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2508#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2525#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2524#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2522#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2517#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2515#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2513#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2511#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2509#L37-3 assume !(main_~i~0 < 5); 2504#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2485#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2486#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2487#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2488#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2489#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2526#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2494#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2483#L42-4 main_~nc_B~0 := 0; 2484#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2501#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2502#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2503#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2510#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2507#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2497#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2498#L55-2 [2020-11-29 18:39:46,848 INFO L796 eck$LassoCheckResult]: Loop: 2498#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2499#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2498#L55-2 [2020-11-29 18:39:46,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:46,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1199820568, now seen corresponding path program 2 times [2020-11-29 18:39:46,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:46,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306850335] [2020-11-29 18:39:46,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,871 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,891 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:46,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:46,898 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 6 times [2020-11-29 18:39:46,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:46,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876614825] [2020-11-29 18:39:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,907 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:39:46,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327925, now seen corresponding path program 2 times [2020-11-29 18:39:46,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:39:46,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338649749] [2020-11-29 18:39:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:39:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:39:46,952 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:39:46,959 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:39:57,576 WARN L193 SmtUtils]: Spent 10.49 s on a formula simplification. DAG size of input: 320 DAG size of output: 241 [2020-11-29 18:39:58,770 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 148 [2020-11-29 18:39:58,782 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:39:58,782 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:39:58,782 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:39:58,783 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:39:58,783 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:39:58,783 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:39:58,783 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:39:58,783 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:39:58,783 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration15_Lasso [2020-11-29 18:39:58,783 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:39:58,783 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:39:58,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:39:58,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,256 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-11-29 18:40:00,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:00,850 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-11-29 18:40:01,394 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:40:01,394 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 94 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 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,399 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 95 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 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,433 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 96 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 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 97 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 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:01,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:01,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 99 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 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 100 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 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,581 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 [2020-11-29 18:40:01,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:01,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 101 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 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 102 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 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,648 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 103 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 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,675 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 [2020-11-29 18:40:01,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,678 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 104 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 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,705 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:01,710 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 105 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 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:01,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,752 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 106 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 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,780 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:40:01,780 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,782 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:40:01,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:01,812 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 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,815 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:01,815 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,818 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 108 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 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:01,858 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 109 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 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:01,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,890 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:01,890 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:01,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 110 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 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,920 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:40:01,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,921 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:40:01,922 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,948 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 111 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 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:01,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:01,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:01,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:01,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:01,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:01,978 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:01,978 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:01,981 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 112 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 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 113 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 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,047 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-29 18:40:02,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,052 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 18:40:02,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 114 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 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,091 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,095 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 115 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 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,128 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 116 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 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,157 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 117 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 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,195 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,201 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 118 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 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 119 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,263 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,264 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,264 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:02,264 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,265 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:02,265 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:02,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 120 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 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,299 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 121 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 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 122 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 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:02,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:02,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:02,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:02,360 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:02,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:02,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:02,396 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:40:02,467 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2020-11-29 18:40:02,468 INFO L444 ModelExtractionUtils]: 13 out of 31 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:02,471 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:02,474 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:40:02,475 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:40:02,475 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 3 Supporting invariants [] [2020-11-29 18:40:02,790 INFO L297 tatePredicateManager]: 46 out of 49 supporting invariants were superfluous and have been removed [2020-11-29 18:40:02,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:02,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-29 18:40:02,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:03,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:40:03,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:03,158 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 [2020-11-29 18:40:03,158 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6 Second operand 8 states. [2020-11-29 18:40:03,409 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6. Second operand 8 states. Result 55 states and 62 transitions. Complement of second has 11 states. [2020-11-29 18:40:03,410 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 [2020-11-29 18:40:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 18:40:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 30 transitions. [2020-11-29 18:40:03,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 30 transitions. Stem has 42 letters. Loop has 2 letters. [2020-11-29 18:40:03,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:03,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 30 transitions. Stem has 44 letters. Loop has 2 letters. [2020-11-29 18:40:03,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:03,412 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 30 transitions. Stem has 42 letters. Loop has 4 letters. [2020-11-29 18:40:03,412 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:03,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 62 transitions. [2020-11-29 18:40:03,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:03,414 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 55 states and 62 transitions. [2020-11-29 18:40:03,414 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2020-11-29 18:40:03,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-11-29 18:40:03,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 62 transitions. [2020-11-29 18:40:03,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:03,415 INFO L691 BuchiCegarLoop]: Abstraction has 55 states and 62 transitions. [2020-11-29 18:40:03,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 62 transitions. [2020-11-29 18:40:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2020-11-29 18:40:03,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 18:40:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-11-29 18:40:03,419 INFO L714 BuchiCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-11-29 18:40:03,419 INFO L594 BuchiCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-11-29 18:40:03,419 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-11-29 18:40:03,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 58 transitions. [2020-11-29 18:40:03,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:03,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:03,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:03,430 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:40:03,430 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:40:03,431 INFO L794 eck$LassoCheckResult]: Stem: 2977#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2969#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2965#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2966#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2970#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3007#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3005#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3003#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3001#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2999#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2994#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2991#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2988#L33-3 assume !(main_~i~0 < 5); 2963#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2964#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2982#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2983#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2985#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3006#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3004#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3002#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3000#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2995#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2992#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2989#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2986#L37-3 assume !(main_~i~0 < 5); 2981#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2958#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2959#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2960#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2961#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2962#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2968#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2967#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2956#L42-4 main_~nc_B~0 := 0; 2957#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2978#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2979#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2980#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2998#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2993#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2990#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2987#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2976#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2972#L55-2 [2020-11-29 18:40:03,431 INFO L796 eck$LassoCheckResult]: Loop: 2972#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2973#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2972#L55-2 [2020-11-29 18:40:03,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:03,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327923, now seen corresponding path program 3 times [2020-11-29 18:40:03,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:03,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577937399] [2020-11-29 18:40:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:03,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:03,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:03,496 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:03,497 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 7 times [2020-11-29 18:40:03,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:03,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117560873] [2020-11-29 18:40:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:03,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:03,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:03,505 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:03,506 INFO L82 PathProgramCache]: Analyzing trace with hash -875586576, now seen corresponding path program 2 times [2020-11-29 18:40:03,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:03,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673926815] [2020-11-29 18:40:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:03,538 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:03,568 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:03,575 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:12,123 WARN L193 SmtUtils]: Spent 8.47 s on a formula simplification. DAG size of input: 345 DAG size of output: 258 [2020-11-29 18:40:13,443 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 157 [2020-11-29 18:40:13,447 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:40:13,447 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:40:13,447 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:40:13,447 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:40:13,447 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:40:13,447 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:13,447 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:40:13,448 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:40:13,448 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration16_Lasso [2020-11-29 18:40:13,448 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:40:13,448 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:40:13,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:13,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,154 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 93 [2020-11-29 18:40:15,425 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-11-29 18:40:15,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:15,735 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-11-29 18:40:16,174 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-11-29 18:40:17,294 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-29 18:40:17,341 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:40:17,341 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 124 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 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:17,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:17,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 125 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 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,381 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,381 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:17,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 126 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 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:17,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:17,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,472 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,473 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,473 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 128 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 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:17,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,581 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 [2020-11-29 18:40:17,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:17,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,590 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,732 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,734 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,735 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,735 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,737 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,833 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 [2020-11-29 18:40:17,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,936 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:17,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:17,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:17,989 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:17,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:17,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:17,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:17,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:17,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:17,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:17,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:18,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 139 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 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,085 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,085 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,087 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 140 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 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:18,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:18,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:18,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 141 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 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,146 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,150 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,150 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,153 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 142 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 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,190 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 143 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 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 144 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 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,262 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 145 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 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,294 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:40:18,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,296 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:40:18,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 146 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 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,334 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 147 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 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,361 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:18,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:18,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:18,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:18,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:18,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:18,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:18,392 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:40:18,530 INFO L443 ModelExtractionUtils]: Simplification made 32 calls to the SMT solver. [2020-11-29 18:40:18,530 INFO L444 ModelExtractionUtils]: 2 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:18,533 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:18,541 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:40:18,542 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:40:18,542 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_6) = -2*ULTIMATE.start_main_~i~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_6 Supporting invariants [] [2020-11-29 18:40:19,046 INFO L297 tatePredicateManager]: 68 out of 69 supporting invariants were superfluous and have been removed [2020-11-29 18:40:19,050 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:40:19,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:19,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 18:40:19,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:19,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:40:19,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:19,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:19,399 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2020-11-29 18:40:19,399 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 58 transitions. cyclomatic complexity: 10 Second operand 7 states. [2020-11-29 18:40:19,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 58 transitions. cyclomatic complexity: 10. Second operand 7 states. Result 61 states and 71 transitions. Complement of second has 10 states. [2020-11-29 18:40:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 5 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:40:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 18:40:19,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 36 transitions. [2020-11-29 18:40:19,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 44 letters. Loop has 2 letters. [2020-11-29 18:40:19,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:19,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 46 letters. Loop has 2 letters. [2020-11-29 18:40:19,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:19,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 44 letters. Loop has 4 letters. [2020-11-29 18:40:19,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:19,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 71 transitions. [2020-11-29 18:40:19,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:40:19,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 71 transitions. [2020-11-29 18:40:19,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2020-11-29 18:40:19,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2020-11-29 18:40:19,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 71 transitions. [2020-11-29 18:40:19,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:19,676 INFO L691 BuchiCegarLoop]: Abstraction has 61 states and 71 transitions. [2020-11-29 18:40:19,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 71 transitions. [2020-11-29 18:40:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2020-11-29 18:40:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 18:40:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-11-29 18:40:19,679 INFO L714 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-11-29 18:40:19,679 INFO L594 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-11-29 18:40:19,679 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-11-29 18:40:19,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 64 transitions. [2020-11-29 18:40:19,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:19,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:19,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:19,680 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:40:19,680 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:40:19,681 INFO L794 eck$LassoCheckResult]: Stem: 3546#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 3539#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3535#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3536#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3538#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3570#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3568#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3566#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3564#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3562#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3560#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3558#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3556#L33-3 assume !(main_~i~0 < 5); 3533#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3534#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3551#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3552#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3554#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3569#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3567#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3565#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3563#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3561#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3559#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3557#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3555#L37-3 assume !(main_~i~0 < 5); 3550#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3528#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3529#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3530#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3531#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3532#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3571#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3537#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3526#L42-4 main_~nc_B~0 := 0; 3527#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3547#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3548#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3549#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3579#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3574#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3573#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3553#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3540#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3541#L55-2 [2020-11-29 18:40:19,681 INFO L796 eck$LassoCheckResult]: Loop: 3541#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3542#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3541#L55-2 [2020-11-29 18:40:19,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:19,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1976281437, now seen corresponding path program 3 times [2020-11-29 18:40:19,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:19,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140680447] [2020-11-29 18:40:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:19,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:19,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:19,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:19,822 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:19,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:19,824 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 8 times [2020-11-29 18:40:19,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:19,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933947205] [2020-11-29 18:40:19,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:19,830 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:19,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:19,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:19,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:19,836 INFO L82 PathProgramCache]: Analyzing trace with hash -830913530, now seen corresponding path program 3 times [2020-11-29 18:40:19,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:19,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845823798] [2020-11-29 18:40:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:19,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:19,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:19,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:30,131 WARN L193 SmtUtils]: Spent 10.12 s on a formula simplification. DAG size of input: 332 DAG size of output: 248 [2020-11-29 18:40:30,917 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-11-29 18:40:30,922 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:40:30,922 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:40:30,922 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:40:30,922 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:40:30,922 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:40:30,922 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:30,922 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:40:30,922 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:40:30,922 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration17_Lasso [2020-11-29 18:40:30,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:40:30,922 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:40:30,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:30,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,024 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:31,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:32,279 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-11-29 18:40:32,485 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2020-11-29 18:40:33,412 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:40:33,412 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 149 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 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:33,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:33,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 150 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 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 151 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 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 152 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 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 153 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 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,542 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 [2020-11-29 18:40:33,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:33,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:33,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 154 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 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 155 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 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,603 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 156 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 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 157 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 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 158 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 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 159 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 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,723 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:33,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:33,728 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 160 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 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,755 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 [2020-11-29 18:40:33,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 161 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 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,789 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 162 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 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,818 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 163 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 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,849 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 164 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 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,879 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 165 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 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 166 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 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,937 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:33,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:33,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 167 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 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:33,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:33,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:33,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:33,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:33,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:33,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:33,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:33,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:33,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 168 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 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,010 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,010 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,013 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 169 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 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:34,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:34,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:34,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 170 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:34,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,112 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,112 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 170 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,117 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 171 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:34,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 171 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 172 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 172 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:34,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:34,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:34,213 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 173 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 173 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,239 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 [2020-11-29 18:40:34,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,246 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 174 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 174 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,274 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-29 18:40:34,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,280 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 18:40:34,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 175 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 175 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,315 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,321 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 176 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 176 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 177 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 177 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,383 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 178 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 178 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 179 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 179 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:34,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:34,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:34,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:34,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:34,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:34,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:34,474 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:40:34,520 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-29 18:40:34,520 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 180 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 180 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:34,522 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:40:34,524 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:40:34,524 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:40:34,525 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_B~0.offset, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_7, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~#string_B~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_7 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 18:40:34,859 INFO L297 tatePredicateManager]: 56 out of 58 supporting invariants were superfluous and have been removed [2020-11-29 18:40:34,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:40:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:35,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 18:40:35,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:35,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 18:40:35,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:35,114 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-29 18:40:35,114 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 64 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-11-29 18:40:35,221 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 64 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 62 states and 74 transitions. Complement of second has 6 states. [2020-11-29 18:40:35,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:40:35,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 18:40:35,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-11-29 18:40:35,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 44 letters. Loop has 2 letters. [2020-11-29 18:40:35,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:35,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 46 letters. Loop has 2 letters. [2020-11-29 18:40:35,224 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:35,224 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 44 letters. Loop has 4 letters. [2020-11-29 18:40:35,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:35,225 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 74 transitions. [2020-11-29 18:40:35,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:35,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 70 transitions. [2020-11-29 18:40:35,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2020-11-29 18:40:35,227 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2020-11-29 18:40:35,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 70 transitions. [2020-11-29 18:40:35,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:35,228 INFO L691 BuchiCegarLoop]: Abstraction has 60 states and 70 transitions. [2020-11-29 18:40:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 70 transitions. [2020-11-29 18:40:35,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-11-29 18:40:35,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 18:40:35,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-11-29 18:40:35,231 INFO L714 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-11-29 18:40:35,231 INFO L594 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-11-29 18:40:35,231 INFO L427 BuchiCegarLoop]: ======== Iteration 18============ [2020-11-29 18:40:35,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 64 transitions. [2020-11-29 18:40:35,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:35,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:35,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:35,243 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:40:35,246 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:40:35,246 INFO L794 eck$LassoCheckResult]: Stem: 4064#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4055#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4052#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4053#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4056#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4091#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4089#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4087#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4085#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4083#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4081#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4079#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4077#L33-3 assume !(main_~i~0 < 5); 4050#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4051#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4070#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4071#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4075#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4090#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4088#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4086#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4084#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4082#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4080#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4078#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4076#L37-3 assume !(main_~i~0 < 5); 4068#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4045#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4046#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4047#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4048#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4049#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4092#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4054#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4043#L42-4 main_~nc_B~0 := 0; 4044#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4065#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4066#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4067#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4098#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4097#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4096#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4095#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4069#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4058#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4063#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4059#L55-2 [2020-11-29 18:40:35,247 INFO L796 eck$LassoCheckResult]: Loop: 4059#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4060#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4059#L55-2 [2020-11-29 18:40:35,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:35,248 INFO L82 PathProgramCache]: Analyzing trace with hash -875586574, now seen corresponding path program 4 times [2020-11-29 18:40:35,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:35,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115861558] [2020-11-29 18:40:35,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:35,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:35,285 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:35,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:35,350 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:35,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:35,365 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 9 times [2020-11-29 18:40:35,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:35,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763926082] [2020-11-29 18:40:35,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:35,369 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:35,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:35,373 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:35,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:35,375 INFO L82 PathProgramCache]: Analyzing trace with hash 374894997, now seen corresponding path program 3 times [2020-11-29 18:40:35,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:35,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750102857] [2020-11-29 18:40:35,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:35,502 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-29 18:40:35,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750102857] [2020-11-29 18:40:35,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780233139] [2020-11-29 18:40:35,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 181 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 181 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:40:35,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-11-29 18:40:35,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:40:35,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:40:35,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:35,785 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-11-29 18:40:35,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:40:35,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-11-29 18:40:35,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429071223] [2020-11-29 18:40:35,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:40:35,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 18:40:35,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-11-29 18:40:35,904 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. cyclomatic complexity: 13 Second operand 14 states. [2020-11-29 18:40:36,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:40:36,463 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2020-11-29 18:40:36,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-11-29 18:40:36,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 102 transitions. [2020-11-29 18:40:36,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:36,465 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 54 states and 59 transitions. [2020-11-29 18:40:36,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-11-29 18:40:36,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-11-29 18:40:36,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 59 transitions. [2020-11-29 18:40:36,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:36,466 INFO L691 BuchiCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-11-29 18:40:36,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 59 transitions. [2020-11-29 18:40:36,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-11-29 18:40:36,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-11-29 18:40:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2020-11-29 18:40:36,469 INFO L714 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-11-29 18:40:36,469 INFO L594 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-11-29 18:40:36,469 INFO L427 BuchiCegarLoop]: ======== Iteration 19============ [2020-11-29 18:40:36,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 57 transitions. [2020-11-29 18:40:36,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:36,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:36,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:36,470 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:40:36,470 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:40:36,471 INFO L794 eck$LassoCheckResult]: Stem: 4395#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4385#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4386#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4387#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4381#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4382#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4419#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4417#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4415#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4413#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4411#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4409#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4406#L33-3 assume !(main_~i~0 < 5); 4379#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4380#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4400#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4401#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4404#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4420#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4418#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4416#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4414#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4412#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4410#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4408#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4405#L37-3 assume !(main_~i~0 < 5); 4399#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4374#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4375#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4376#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4377#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4378#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4384#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4422#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4421#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4383#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4372#L42-4 main_~nc_B~0 := 0; 4373#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4396#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4403#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4423#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4397#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4398#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4407#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4402#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4388#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4389#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4394#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4390#L55-2 [2020-11-29 18:40:36,471 INFO L796 eck$LassoCheckResult]: Loop: 4390#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4391#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4390#L55-2 [2020-11-29 18:40:36,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:36,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1312494829, now seen corresponding path program 5 times [2020-11-29 18:40:36,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:36,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851543209] [2020-11-29 18:40:36,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:36,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:36,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:36,546 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:36,547 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 10 times [2020-11-29 18:40:36,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:36,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606127770] [2020-11-29 18:40:36,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:36,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:36,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:36,554 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:36,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:36,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851760, now seen corresponding path program 4 times [2020-11-29 18:40:36,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:36,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414779427] [2020-11-29 18:40:36,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:36,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:36,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:36,666 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:48,508 WARN L193 SmtUtils]: Spent 11.74 s on a formula simplification. DAG size of input: 369 DAG size of output: 281 [2020-11-29 18:40:50,002 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 172 [2020-11-29 18:40:50,006 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:40:50,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:40:50,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:40:50,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:40:50,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:40:50,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:50,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:40:50,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:40:50,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration19_Lasso [2020-11-29 18:40:50,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:40:50,007 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:40:50,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:50,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:52,714 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 97 [2020-11-29 18:40:52,951 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-11-29 18:40:52,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:52,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:52,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:52,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:52,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:52,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:40:53,357 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-11-29 18:40:54,416 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-29 18:40:54,644 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:40:54,645 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 182 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 182 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,661 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 [2020-11-29 18:40:54,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:54,665 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 183 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 183 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:54,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:54,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 184 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 184 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:54,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 185 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 185 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:54,766 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 186 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 186 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,793 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,796 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:54,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:54,799 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 187 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 187 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,828 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:54,830 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 188 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 188 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:54,859 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 189 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 189 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:54,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 190 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 190 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:54,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 191 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:54,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 191 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 192 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 192 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:54,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:54,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:54,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:54,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:54,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:54,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:54,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:54,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:55,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 193 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 193 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:55,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,030 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:55,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:55,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 194 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 194 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,061 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,064 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 195 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 195 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:55,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:55,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:55,095 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 196 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 196 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,127 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 197 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 197 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,156 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:40:55,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,157 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:40:55,157 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 198 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 198 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 199 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 199 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 200 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 200 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,262 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 201 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 201 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:40:55,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:40:55,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:40:55,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 202 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 202 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,319 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,322 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,322 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 203 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:40:55,354 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 203 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,357 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 204 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 204 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,410 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,411 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,414 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 205 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 205 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,444 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-11-29 18:40:55,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,467 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-11-29 18:40:55,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 206 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 206 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,520 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,520 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 207 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 207 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:40:55,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,550 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:40:55,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,552 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:40:55,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,555 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 208 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 208 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,581 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 [2020-11-29 18:40:55,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:40:55,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:40:55,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:40:55,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:40:55,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:40:55,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:40:55,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:40:55,659 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-29 18:40:55,659 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 209 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 209 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:40:55,662 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:40:55,664 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:40:55,665 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:40:55,665 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2020-11-29 18:40:56,140 INFO L297 tatePredicateManager]: 55 out of 57 supporting invariants were superfluous and have been removed [2020-11-29 18:40:56,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:56,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-29 18:40:56,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:56,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 18:40:56,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:40:56,730 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.10 stem predicates 2 loop predicates [2020-11-29 18:40:56,731 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 57 transitions. cyclomatic complexity: 9 Second operand 12 states. [2020-11-29 18:40:57,219 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 57 transitions. cyclomatic complexity: 9. Second operand 12 states. Result 85 states and 100 transitions. Complement of second has 15 states. [2020-11-29 18:40:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:40:57,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 18:40:57,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 55 transitions. [2020-11-29 18:40:57,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 55 transitions. Stem has 48 letters. Loop has 2 letters. [2020-11-29 18:40:57,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:57,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 55 transitions. Stem has 50 letters. Loop has 2 letters. [2020-11-29 18:40:57,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:57,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 55 transitions. Stem has 48 letters. Loop has 4 letters. [2020-11-29 18:40:57,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:40:57,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 100 transitions. [2020-11-29 18:40:57,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:57,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 85 states and 100 transitions. [2020-11-29 18:40:57,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-11-29 18:40:57,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2020-11-29 18:40:57,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 100 transitions. [2020-11-29 18:40:57,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:57,225 INFO L691 BuchiCegarLoop]: Abstraction has 85 states and 100 transitions. [2020-11-29 18:40:57,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 100 transitions. [2020-11-29 18:40:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 69. [2020-11-29 18:40:57,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-29 18:40:57,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-11-29 18:40:57,230 INFO L714 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-11-29 18:40:57,230 INFO L594 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-11-29 18:40:57,230 INFO L427 BuchiCegarLoop]: ======== Iteration 20============ [2020-11-29 18:40:57,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 78 transitions. [2020-11-29 18:40:57,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:57,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:57,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:57,232 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:40:57,232 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:40:57,233 INFO L794 eck$LassoCheckResult]: Stem: 4967#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4957#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4958#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4959#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4954#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4955#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4990#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4988#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4986#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4984#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4982#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4980#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4978#L33-3 assume !(main_~i~0 < 5); 4952#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4953#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4973#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4974#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4976#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4991#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4989#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4987#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4985#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4983#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4981#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4979#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4977#L37-3 assume !(main_~i~0 < 5); 4972#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4951#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4947#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4948#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4949#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4950#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4994#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4995#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5013#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4993#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4992#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4956#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4945#L42-4 main_~nc_B~0 := 0; 4946#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5010#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5009#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5008#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4998#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4997#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4996#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4975#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4960#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4961#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4966#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4962#L55-2 [2020-11-29 18:40:57,233 INFO L796 eck$LassoCheckResult]: Loop: 4962#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4963#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4962#L55-2 [2020-11-29 18:40:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:57,234 INFO L82 PathProgramCache]: Analyzing trace with hash -456376174, now seen corresponding path program 6 times [2020-11-29 18:40:57,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:57,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100855990] [2020-11-29 18:40:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:57,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:40:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-29 18:40:57,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100855990] [2020-11-29 18:40:57,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463615644] [2020-11-29 18:40:57,487 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 210 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 210 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:40:57,671 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-11-29 18:40:57,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:40:57,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 18:40:57,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:40:57,849 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-11-29 18:40:57,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:40:57,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2020-11-29 18:40:57,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577848783] [2020-11-29 18:40:57,851 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 18:40:57,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:57,851 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 11 times [2020-11-29 18:40:57,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:57,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386291184] [2020-11-29 18:40:57,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:57,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:57,858 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:57,859 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:57,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:40:57,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 18:40:57,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2020-11-29 18:40:57,979 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. cyclomatic complexity: 14 Second operand 16 states. [2020-11-29 18:40:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:40:58,278 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2020-11-29 18:40:58,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 18:40:58,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 98 transitions. [2020-11-29 18:40:58,282 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:40:58,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 83 states and 96 transitions. [2020-11-29 18:40:58,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-11-29 18:40:58,283 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2020-11-29 18:40:58,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 96 transitions. [2020-11-29 18:40:58,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:40:58,283 INFO L691 BuchiCegarLoop]: Abstraction has 83 states and 96 transitions. [2020-11-29 18:40:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 96 transitions. [2020-11-29 18:40:58,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 71. [2020-11-29 18:40:58,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 18:40:58,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2020-11-29 18:40:58,287 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-11-29 18:40:58,287 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-11-29 18:40:58,287 INFO L427 BuchiCegarLoop]: ======== Iteration 21============ [2020-11-29 18:40:58,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 80 transitions. [2020-11-29 18:40:58,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:40:58,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:40:58,288 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:40:58,288 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:40:58,288 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:40:58,289 INFO L794 eck$LassoCheckResult]: Stem: 5293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 5283#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5284#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5285#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5280#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5281#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5317#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5315#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5313#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5311#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5309#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5307#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5305#L33-3 assume !(main_~i~0 < 5); 5278#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5279#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5299#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5300#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5304#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5319#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5318#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5316#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5314#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5312#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5310#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5308#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5306#L37-3 assume !(main_~i~0 < 5); 5298#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5273#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5274#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5275#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5276#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5277#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5323#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5322#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5320#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5282#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5271#L42-4 main_~nc_B~0 := 0; 5272#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5336#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5335#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5334#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5333#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5332#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5331#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5297#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5328#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5301#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5286#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5287#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5292#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5288#L55-2 [2020-11-29 18:40:58,289 INFO L796 eck$LassoCheckResult]: Loop: 5288#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5289#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 5288#L55-2 [2020-11-29 18:40:58,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:58,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1368178712, now seen corresponding path program 7 times [2020-11-29 18:40:58,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:58,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258728428] [2020-11-29 18:40:58,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,331 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,369 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:58,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:58,370 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 12 times [2020-11-29 18:40:58,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:58,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909793645] [2020-11-29 18:40:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,374 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,376 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,377 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:40:58,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:40:58,378 INFO L82 PathProgramCache]: Analyzing trace with hash -559747061, now seen corresponding path program 5 times [2020-11-29 18:40:58,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:40:58,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611219324] [2020-11-29 18:40:58,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:40:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,410 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:40:58,441 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:40:58,448 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:41:08,368 WARN L193 SmtUtils]: Spent 9.79 s on a formula simplification. DAG size of input: 381 DAG size of output: 284 [2020-11-29 18:41:09,660 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 162 [2020-11-29 18:41:09,664 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:41:09,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:41:09,665 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:41:09,665 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:41:09,665 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:41:09,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:09,665 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:41:09,665 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:41:09,665 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration21_Lasso [2020-11-29 18:41:09,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:41:09,665 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:41:09,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:09,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,144 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2020-11-29 18:41:12,559 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-11-29 18:41:12,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:12,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:13,223 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-11-29 18:41:14,488 WARN L193 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-11-29 18:41:14,771 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:41:14,772 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 211 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 211 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:14,800 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 [2020-11-29 18:41:14,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:14,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:14,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:14,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:14,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:14,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:14,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:14,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 212 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 212 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:14,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:14,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:14,831 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:14,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:14,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:14,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:14,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:14,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:14,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 213 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 213 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:14,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:14,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:14,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:14,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:14,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:14,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:14,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:14,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:14,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 214 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 214 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:14,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:14,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:14,891 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:14,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:14,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:14,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:14,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:14,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:14,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 215 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 215 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:14,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:14,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:14,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:14,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:14,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:14,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:14,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:14,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:14,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 216 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 216 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:14,950 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:14,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:14,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:14,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:14,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:14,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:14,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:14,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:14,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 217 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 217 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,002 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 [2020-11-29 18:41:15,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 218 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 218 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,034 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,039 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,042 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 219 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 219 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:15,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:15,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:15,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 220 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 220 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 221 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 221 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,131 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:41:15,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,132 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:41:15,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,135 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 222 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 222 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 223 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 223 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 224 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 224 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 225 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 225 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,262 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,264 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,264 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 226 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 226 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,314 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 [2020-11-29 18:41:15,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:15,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:15,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:15,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 227 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 227 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 228 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 228 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,385 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:41:15,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,386 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:41:15,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,390 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 229 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 229 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:15,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:15,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:15,419 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 230 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 230 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,451 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 231 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 231 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:15,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:15,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:15,480 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 232 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 232 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,508 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-11-29 18:41:15,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,536 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-11-29 18:41:15,536 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 233 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 233 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:15,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:15,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:15,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 234 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 234 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,622 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,622 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,625 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 235 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 235 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:15,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:15,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:15,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 236 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 236 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:15,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:15,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:15,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:15,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:15,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:15,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:15,711 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:41:15,753 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2020-11-29 18:41:15,753 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 237 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 237 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:15,756 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:41:15,758 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:41:15,758 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:41:15,758 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_9) = -4*ULTIMATE.start_main_~j~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_9 Supporting invariants [] [2020-11-29 18:41:16,404 INFO L297 tatePredicateManager]: 71 out of 75 supporting invariants were superfluous and have been removed [2020-11-29 18:41:16,423 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:41:16,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:16,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 22 conjunts are in the unsatisfiable core [2020-11-29 18:41:16,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:16,978 WARN L261 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 17 conjunts are in the unsatisfiable core [2020-11-29 18:41:16,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:17,073 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 2 loop predicates [2020-11-29 18:41:17,073 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 14 Second operand 10 states. [2020-11-29 18:41:17,592 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 14. Second operand 10 states. Result 92 states and 111 transitions. Complement of second has 13 states. [2020-11-29 18:41:17,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 8 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:41:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-29 18:41:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 42 transitions. [2020-11-29 18:41:17,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 42 transitions. Stem has 50 letters. Loop has 2 letters. [2020-11-29 18:41:17,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:17,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 42 transitions. Stem has 52 letters. Loop has 2 letters. [2020-11-29 18:41:17,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:17,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 42 transitions. Stem has 50 letters. Loop has 4 letters. [2020-11-29 18:41:17,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:17,596 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 111 transitions. [2020-11-29 18:41:17,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:41:17,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 90 states and 107 transitions. [2020-11-29 18:41:17,598 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-11-29 18:41:17,598 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2020-11-29 18:41:17,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 107 transitions. [2020-11-29 18:41:17,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:41:17,599 INFO L691 BuchiCegarLoop]: Abstraction has 90 states and 107 transitions. [2020-11-29 18:41:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 107 transitions. [2020-11-29 18:41:17,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 71. [2020-11-29 18:41:17,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 18:41:17,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2020-11-29 18:41:17,602 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-11-29 18:41:17,602 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-11-29 18:41:17,602 INFO L427 BuchiCegarLoop]: ======== Iteration 22============ [2020-11-29 18:41:17,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 80 transitions. [2020-11-29 18:41:17,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:41:17,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:41:17,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:41:17,604 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:41:17,604 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:41:17,604 INFO L794 eck$LassoCheckResult]: Stem: 5966#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 5956#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5957#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5958#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5951#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5952#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5991#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5989#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5987#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5985#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5983#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5981#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5979#L33-3 assume !(main_~i~0 < 5); 5949#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5950#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5973#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5974#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5978#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5993#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5992#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5990#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5988#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5986#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5984#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5982#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5980#L37-3 assume !(main_~i~0 < 5); 5971#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5944#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5945#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5946#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5955#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5998#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5947#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5948#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5997#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5953#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5954#L42-4 main_~nc_B~0 := 0; 5967#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5968#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6004#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6005#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 6001#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 6000#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5999#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5975#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5976#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 6009#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5972#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5960#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5964#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5961#L55-2 [2020-11-29 18:41:17,604 INFO L796 eck$LassoCheckResult]: Loop: 5961#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5962#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 5961#L55-2 [2020-11-29 18:41:17,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:17,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851758, now seen corresponding path program 8 times [2020-11-29 18:41:17,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:17,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853574988] [2020-11-29 18:41:17,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:17,636 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:17,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:17,675 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:41:17,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:17,676 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 13 times [2020-11-29 18:41:17,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:17,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508944204] [2020-11-29 18:41:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:17,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:17,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:17,684 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:41:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:17,684 INFO L82 PathProgramCache]: Analyzing trace with hash -540871307, now seen corresponding path program 6 times [2020-11-29 18:41:17,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:17,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874200698] [2020-11-29 18:41:17,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:17,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:17,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:17,748 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:41:28,800 WARN L193 SmtUtils]: Spent 10.90 s on a formula simplification. DAG size of input: 393 DAG size of output: 293 [2020-11-29 18:41:30,129 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 166 [2020-11-29 18:41:30,134 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:41:30,134 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:41:30,134 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:41:30,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:41:30,134 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:41:30,134 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:30,134 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:41:30,134 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:41:30,134 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration22_Lasso [2020-11-29 18:41:30,134 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:41:30,134 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:41:30,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:30,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:32,714 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 98 [2020-11-29 18:41:33,168 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-11-29 18:41:33,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:33,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:33,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:33,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:33,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:33,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:41:33,417 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-11-29 18:41:33,789 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-11-29 18:41:33,918 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-11-29 18:41:38,126 WARN L193 SmtUtils]: Spent 4.10 s on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2020-11-29 18:41:38,547 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:41:38,548 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 238 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:38,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 238 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 239 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 239 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,600 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,602 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 240 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 240 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:38,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:38,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 241 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 241 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,665 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:38,665 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:38,668 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 242 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 242 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 243 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 243 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,728 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 244 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 244 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,757 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 245 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 245 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,788 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 246 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 246 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,815 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 247 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 247 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 248 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 248 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,877 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:38,877 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:38,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 249 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 249 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 250 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 250 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:38,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:38,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:38,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:38,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:38,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 251 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 251 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:38,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:38,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:38,968 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2020-11-29 18:41:38,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:38,968 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,059 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2020-11-29 18:41:39,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:39,176 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 252 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 252 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 253 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 253 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,282 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 254 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 254 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,331 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,331 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:41:39,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,331 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,333 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:41:39,333 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:39,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 255 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,383 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 255 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 256 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:39,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:39,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 256 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,457 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 257 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 257 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 258 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,554 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:41:39,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,556 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:41:39,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 258 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 259 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,606 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:39,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:39,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 259 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 260 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 260 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 261 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 261 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,715 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 262 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:39,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 262 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 263 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 263 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,821 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:39,827 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 264 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 264 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,857 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:39,862 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 265 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 265 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,899 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:39,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 266 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 266 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,930 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 [2020-11-29 18:41:39,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,934 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:39,934 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:39,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 267 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 267 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,966 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,967 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:41:39,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:39,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:41:39,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:41:39,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 268 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 268 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:39,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:41:39,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:41:39,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:41:39,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:41:39,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:41:40,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:41:40,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:41:40,024 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:41:40,068 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 18:41:40,068 INFO L444 ModelExtractionUtils]: 15 out of 31 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 269 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:41:40,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 269 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:41:40,082 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:41:40,082 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:41:40,082 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10, ULTIMATE.start_main_~i~0) = 5*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_10 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 18:41:40,576 INFO L297 tatePredicateManager]: 68 out of 69 supporting invariants were superfluous and have been removed [2020-11-29 18:41:40,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:41:40,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:40,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 18:41:40,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:40,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:41:40,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:40,979 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 [2020-11-29 18:41:40,980 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15 Second operand 8 states. [2020-11-29 18:41:41,236 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15. Second operand 8 states. Result 95 states and 114 transitions. Complement of second has 11 states. [2020-11-29 18:41:41,237 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 [2020-11-29 18:41:41,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 18:41:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2020-11-29 18:41:41,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 50 letters. Loop has 2 letters. [2020-11-29 18:41:41,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:41,238 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:41:41,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:41,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 18:41:41,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:41,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:41:41,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:41,617 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.6 stem predicates 2 loop predicates [2020-11-29 18:41:41,617 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15 Second operand 8 states. [2020-11-29 18:41:41,879 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15. Second operand 8 states. Result 95 states and 114 transitions. Complement of second has 11 states. [2020-11-29 18:41:41,882 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 [2020-11-29 18:41:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 18:41:41,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2020-11-29 18:41:41,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 50 letters. Loop has 2 letters. [2020-11-29 18:41:41,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:41,882 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:41:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:41,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 18:41:41,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:41:42,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 18:41:42,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:41:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:41:42,253 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-11-29 18:41:42,253 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15 Second operand 8 states. [2020-11-29 18:41:42,528 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15. Second operand 8 states. Result 96 states and 116 transitions. Complement of second has 10 states. [2020-11-29 18:41:42,530 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 [2020-11-29 18:41:42,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 18:41:42,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 40 transitions. [2020-11-29 18:41:42,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 40 transitions. Stem has 50 letters. Loop has 2 letters. [2020-11-29 18:41:42,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:42,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 40 transitions. Stem has 52 letters. Loop has 2 letters. [2020-11-29 18:41:42,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:42,531 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 40 transitions. Stem has 50 letters. Loop has 4 letters. [2020-11-29 18:41:42,531 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:41:42,531 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 116 transitions. [2020-11-29 18:41:42,533 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-11-29 18:41:42,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 94 states and 112 transitions. [2020-11-29 18:41:42,534 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2020-11-29 18:41:42,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2020-11-29 18:41:42,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 112 transitions. [2020-11-29 18:41:42,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:41:42,535 INFO L691 BuchiCegarLoop]: Abstraction has 94 states and 112 transitions. [2020-11-29 18:41:42,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 112 transitions. [2020-11-29 18:41:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2020-11-29 18:41:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-11-29 18:41:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2020-11-29 18:41:42,538 INFO L714 BuchiCegarLoop]: Abstraction has 79 states and 91 transitions. [2020-11-29 18:41:42,538 INFO L594 BuchiCegarLoop]: Abstraction has 79 states and 91 transitions. [2020-11-29 18:41:42,539 INFO L427 BuchiCegarLoop]: ======== Iteration 23============ [2020-11-29 18:41:42,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 91 transitions. [2020-11-29 18:41:42,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 18:41:42,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:41:42,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:41:42,541 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:41:42,541 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:41:42,541 INFO L794 eck$LassoCheckResult]: Stem: 7167#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 7157#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 7158#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7159#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7153#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7154#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7191#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7189#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7187#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7185#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7183#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7181#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7179#L33-3 assume !(main_~i~0 < 5); 7151#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 7152#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 7174#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7175#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7178#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7193#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7192#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7190#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7188#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7186#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7184#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7182#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7180#L37-3 assume !(main_~i~0 < 5); 7172#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 7146#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 7147#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7148#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7149#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7150#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7199#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7197#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7198#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7155#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 7156#L42-4 main_~nc_B~0 := 0; 7168#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7169#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7177#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7205#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7170#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7171#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7219#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7176#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 7160#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 7161#L55-2 [2020-11-29 18:41:42,542 INFO L796 eck$LassoCheckResult]: Loop: 7161#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7166#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7161#L55-2 [2020-11-29 18:41:42,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:42,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1972313288, now seen corresponding path program 4 times [2020-11-29 18:41:42,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:42,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017555191] [2020-11-29 18:41:42,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:42,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:42,588 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:42,595 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:41:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:42,596 INFO L82 PathProgramCache]: Analyzing trace with hash 3558, now seen corresponding path program 1 times [2020-11-29 18:41:42,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:42,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893192216] [2020-11-29 18:41:42,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:42,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:42,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:42,602 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:41:42,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:41:42,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1312494829, now seen corresponding path program 9 times [2020-11-29 18:41:42,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:41:42,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474739414] [2020-11-29 18:41:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:41:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:42,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:41:42,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:41:42,658 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:42:01,262 WARN L193 SmtUtils]: Spent 18.44 s on a formula simplification. DAG size of input: 344 DAG size of output: 261 [2020-11-29 18:42:03,736 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 160 [2020-11-29 18:42:03,744 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:42:03,744 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:42:03,744 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:42:03,744 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:42:03,744 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:42:03,744 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:03,744 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:42:03,744 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:42:03,744 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration23_Lasso [2020-11-29 18:42:03,745 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:42:03,745 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:42:03,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:03,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:06,790 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 96 [2020-11-29 18:42:07,125 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-11-29 18:42:07,703 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-11-29 18:42:08,265 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-29 18:42:08,546 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:42:08,546 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 270 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 270 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,573 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 271 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:42:08,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 271 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,630 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 272 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:42:08,675 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 [2020-11-29 18:42:08,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:08,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 272 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 273 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:42:08,729 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 273 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 274 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 274 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,776 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 275 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 275 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:08,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:08,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 276 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 276 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 277 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 277 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 278 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 278 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,905 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,905 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 279 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 279 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 280 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 280 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,964 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,964 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 281 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 281 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:08,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:08,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:08,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:08,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:08,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:08,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:08,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:08,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:08,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 282 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 282 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 283 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 283 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:09,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:09,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:09,063 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 284 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 284 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,095 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 285 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 285 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:09,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:09,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:09,124 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 286 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 286 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:09,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:09,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:09,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 287 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 287 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,187 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 [2020-11-29 18:42:09,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:09,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,189 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:09,189 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:09,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 288 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 288 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:09,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:09,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:09,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 289 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 289 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 290 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 290 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:09,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:09,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:09,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 291 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 291 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 292 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 292 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 293 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 293 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 294 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 294 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,419 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,419 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 295 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 295 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,459 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:42:09,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,461 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:42:09,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,464 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 296 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 296 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 297 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 297 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,523 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:42:09,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,525 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:42:09,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,528 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 298 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 298 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,554 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 [2020-11-29 18:42:09,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,561 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 299 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 299 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,590 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 300 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 300 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:09,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:09,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:09,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 301 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 301 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 302 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 302 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 303 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 303 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,718 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-29 18:42:09,718 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:42:09,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,733 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-11-29 18:42:09,733 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 18:42:09,758 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 304 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 304 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,784 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:09,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:09,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:09,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:09,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:09,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:09,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:09,815 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:42:09,866 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-11-29 18:42:09,866 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 305 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 305 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:09,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:42:09,870 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:42:09,871 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:42:09,871 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2020-11-29 18:42:10,337 INFO L297 tatePredicateManager]: 64 out of 68 supporting invariants were superfluous and have been removed [2020-11-29 18:42:10,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:10,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 26 conjunts are in the unsatisfiable core [2020-11-29 18:42:10,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:42:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:11,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:42:11,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:42:11,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:11,107 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2020-11-29 18:42:11,107 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 91 transitions. cyclomatic complexity: 19 Second operand 13 states. [2020-11-29 18:42:11,747 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 91 transitions. cyclomatic complexity: 19. Second operand 13 states. Result 95 states and 113 transitions. Complement of second has 16 states. [2020-11-29 18:42:11,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:42:11,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-29 18:42:11,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 47 transitions. [2020-11-29 18:42:11,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 47 transitions. Stem has 46 letters. Loop has 2 letters. [2020-11-29 18:42:11,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:42:11,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 47 transitions. Stem has 48 letters. Loop has 2 letters. [2020-11-29 18:42:11,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:42:11,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 47 transitions. Stem has 46 letters. Loop has 4 letters. [2020-11-29 18:42:11,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:42:11,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 113 transitions. [2020-11-29 18:42:11,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 18:42:11,759 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 93 states and 109 transitions. [2020-11-29 18:42:11,759 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-11-29 18:42:11,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2020-11-29 18:42:11,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 109 transitions. [2020-11-29 18:42:11,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:42:11,759 INFO L691 BuchiCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-11-29 18:42:11,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 109 transitions. [2020-11-29 18:42:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 82. [2020-11-29 18:42:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-29 18:42:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2020-11-29 18:42:11,766 INFO L714 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2020-11-29 18:42:11,766 INFO L594 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2020-11-29 18:42:11,766 INFO L427 BuchiCegarLoop]: ======== Iteration 24============ [2020-11-29 18:42:11,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2020-11-29 18:42:11,767 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 18:42:11,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:11,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:11,768 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:11,768 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:42:11,769 INFO L794 eck$LassoCheckResult]: Stem: 7817#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 7810#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 7804#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7805#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7809#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7845#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7843#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7841#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7839#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7837#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7835#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7833#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7831#L33-3 assume !(main_~i~0 < 5); 7802#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 7803#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 7825#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7826#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7830#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7846#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7844#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7842#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7840#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7838#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7836#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7834#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7832#L37-3 assume !(main_~i~0 < 5); 7822#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 7797#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 7798#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7799#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7808#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7853#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7800#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7801#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7850#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7806#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 7807#L42-4 main_~nc_B~0 := 0; 7818#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7819#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7829#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7857#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7858#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7869#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7868#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7867#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 7865#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 7864#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7814#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 7816#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7815#L55 [2020-11-29 18:42:11,769 INFO L796 eck$LassoCheckResult]: Loop: 7815#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7813#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7815#L55 [2020-11-29 18:42:11,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:11,769 INFO L82 PathProgramCache]: Analyzing trace with hash 2032634054, now seen corresponding path program 4 times [2020-11-29 18:42:11,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:11,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494584482] [2020-11-29 18:42:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:11,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:11,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:11,830 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:42:11,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:11,831 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 2 times [2020-11-29 18:42:11,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:11,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132436701] [2020-11-29 18:42:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:11,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:11,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:11,839 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:42:11,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:11,839 INFO L82 PathProgramCache]: Analyzing trace with hash -848791039, now seen corresponding path program 7 times [2020-11-29 18:42:11,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:11,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781815595] [2020-11-29 18:42:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:11,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:11,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:11,937 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:42:36,365 WARN L193 SmtUtils]: Spent 24.27 s on a formula simplification. DAG size of input: 383 DAG size of output: 282 [2020-11-29 18:42:38,418 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 170 [2020-11-29 18:42:38,425 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:42:38,425 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:42:38,425 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:42:38,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:42:38,425 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:42:38,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:38,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:42:38,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:42:38,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration24_Lasso [2020-11-29 18:42:38,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:42:38,425 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:42:38,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:38,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:38,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:38,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:38,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:38,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:38,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:43,245 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 105 [2020-11-29 18:42:44,036 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-11-29 18:42:44,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:42:44,623 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-11-29 18:42:45,372 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-11-29 18:42:45,538 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-11-29 18:42:45,932 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:42:45,933 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 306 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 306 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:45,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:45,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:45,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:45,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:45,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:45,937 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:45,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:45,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:45,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 307 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 307 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:45,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:45,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:45,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:45,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:45,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:45,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:45,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:45,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:45,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 308 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 308 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:45,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:45,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:45,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:45,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:45,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:45,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:45,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:45,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 309 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 309 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,024 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 [2020-11-29 18:42:46,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:46,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:46,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:46,027 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 310 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 310 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,053 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 [2020-11-29 18:42:46,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,056 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:46,056 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 311 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 311 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,085 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,086 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:46,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,087 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:46,087 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:46,088 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 312 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 312 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:46,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 313 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 313 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:46,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 314 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 314 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:46,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 315 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 315 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:46,212 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 316 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 316 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,243 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:42:46,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:42:46,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:42:46,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 317 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 317 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,272 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:46,272 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,275 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 318 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 318 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,302 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:42:46,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,303 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:42:46,303 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 319 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 319 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,338 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-11-29 18:42:46,338 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 18:42:46,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,371 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-11-29 18:42:46,371 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 18:42:46,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 320 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 320 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:42:46,449 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:42:46,449 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:42:46,449 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:42:46,449 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:42:46,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:42:46,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:42:46,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:42:46,546 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-11-29 18:42:46,546 INFO L444 ModelExtractionUtils]: 0 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 321 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 321 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:42:46,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:42:46,550 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:42:46,551 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:42:46,551 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~j~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~nc_A~0 + 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-11-29 18:42:47,111 INFO L297 tatePredicateManager]: 72 out of 72 supporting invariants were superfluous and have been removed [2020-11-29 18:42:47,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:47,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:42:47,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:42:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:42:47,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 18:42:47,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:42:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:42:47,240 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:42:47,240 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 22 Second operand 3 states. [2020-11-29 18:42:47,290 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 22. Second operand 3 states. Result 121 states and 150 transitions. Complement of second has 6 states. [2020-11-29 18:42:47,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 18:42:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:42:47,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-11-29 18:42:47,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 49 letters. Loop has 2 letters. [2020-11-29 18:42:47,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:42:47,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 51 letters. Loop has 2 letters. [2020-11-29 18:42:47,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:42:47,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 49 letters. Loop has 4 letters. [2020-11-29 18:42:47,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:42:47,294 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 121 states and 150 transitions. [2020-11-29 18:42:47,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:42:47,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 121 states to 88 states and 101 transitions. [2020-11-29 18:42:47,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2020-11-29 18:42:47,296 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2020-11-29 18:42:47,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 101 transitions. [2020-11-29 18:42:47,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:42:47,297 INFO L691 BuchiCegarLoop]: Abstraction has 88 states and 101 transitions. [2020-11-29 18:42:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 101 transitions. [2020-11-29 18:42:47,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 80. [2020-11-29 18:42:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-29 18:42:47,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2020-11-29 18:42:47,300 INFO L714 BuchiCegarLoop]: Abstraction has 80 states and 92 transitions. [2020-11-29 18:42:47,300 INFO L594 BuchiCegarLoop]: Abstraction has 80 states and 92 transitions. [2020-11-29 18:42:47,300 INFO L427 BuchiCegarLoop]: ======== Iteration 25============ [2020-11-29 18:42:47,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 92 transitions. [2020-11-29 18:42:47,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:42:47,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:42:47,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:42:47,302 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:42:47,302 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:42:47,303 INFO L794 eck$LassoCheckResult]: Stem: 8485#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 8475#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8476#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8477#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8471#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8472#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8511#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8509#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8507#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8505#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8503#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8501#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8499#L33-3 assume !(main_~i~0 < 5); 8469#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8470#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8493#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8494#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8498#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8513#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8512#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8510#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8508#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8506#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8504#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8502#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8500#L37-3 assume !(main_~i~0 < 5); 8489#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8464#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8465#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8466#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8474#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8521#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8467#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8468#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8540#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8518#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8517#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8473#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8462#L42-4 main_~nc_B~0 := 0; 8463#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8486#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8536#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8535#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8534#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8523#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8524#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8519#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8520#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8495#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8496#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8480#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8481#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8530#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8529#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8528#L55-2 [2020-11-29 18:42:47,303 INFO L796 eck$LassoCheckResult]: Loop: 8528#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8527#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8528#L55-2 [2020-11-29 18:42:47,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:47,304 INFO L82 PathProgramCache]: Analyzing trace with hash 733724976, now seen corresponding path program 8 times [2020-11-29 18:42:47,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:47,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628093133] [2020-11-29 18:42:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:47,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:47,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:47,367 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:42:47,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:47,368 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 14 times [2020-11-29 18:42:47,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:47,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217939812] [2020-11-29 18:42:47,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:47,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:47,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:47,373 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:47,375 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:42:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:42:47,375 INFO L82 PathProgramCache]: Analyzing trace with hash 735067987, now seen corresponding path program 9 times [2020-11-29 18:42:47,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:42:47,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484245844] [2020-11-29 18:42:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:42:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:47,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:42:47,429 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:42:47,436 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:03,762 WARN L193 SmtUtils]: Spent 16.17 s on a formula simplification. DAG size of input: 416 DAG size of output: 304 [2020-11-29 18:43:05,925 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 165 [2020-11-29 18:43:05,930 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:43:05,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:43:05,930 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:43:05,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:43:05,930 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:43:05,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:05,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:43:05,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:43:05,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration25_Lasso [2020-11-29 18:43:05,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:43:05,931 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:43:05,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:05,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:05,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:05,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:05,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:05,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:05,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,060 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:06,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:10,067 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 99 [2020-11-29 18:43:10,665 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 52 [2020-11-29 18:43:10,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:10,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:10,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:10,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:43:11,017 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-11-29 18:43:11,321 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-11-29 18:43:15,814 WARN L193 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-11-29 18:43:15,950 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:43:15,950 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 322 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 322 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:15,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:15,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:15,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:15,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:15,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:15,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:15,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:15,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:15,956 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 323 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 323 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:15,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:15,983 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:15,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:15,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:15,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:15,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:15,984 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:15,984 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:15,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 324 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 324 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 325 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 325 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,049 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 326 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 326 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,084 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 327 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 327 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 328 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 328 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,140 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,146 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 329 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 329 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,172 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,172 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 330 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 330 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 331 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 331 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 332 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 332 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,255 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,255 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,257 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 333 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 333 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 334 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 334 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,306 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,307 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 335 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 335 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,331 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,332 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 336 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 336 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,358 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 337 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 337 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 338 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 338 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 339 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 339 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 340 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 340 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,482 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:43:16,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:43:16,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:43:16,485 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 341 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 341 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 342 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 342 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 343 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 343 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,578 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:43:16,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:43:16,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:43:16,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:43:16,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:43:16,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:43:16,590 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:43:16,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:43:16,639 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 18:43:16,639 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 344 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 344 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:43:16,641 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:43:16,643 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:43:16,643 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:43:16,643 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~nc_A~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 18:43:17,465 INFO L297 tatePredicateManager]: 85 out of 85 supporting invariants were superfluous and have been removed [2020-11-29 18:43:17,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:17,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:43:17,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:43:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:17,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:43:17,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:43:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:43:17,598 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:43:17,598 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 20 Second operand 3 states. [2020-11-29 18:43:17,641 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 80 states and 92 transitions. cyclomatic complexity: 20. Second operand 3 states. Result 105 states and 123 transitions. Complement of second has 5 states. [2020-11-29 18:43:17,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:43:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:43:17,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-11-29 18:43:17,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 54 letters. Loop has 2 letters. [2020-11-29 18:43:17,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:43:17,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 56 letters. Loop has 2 letters. [2020-11-29 18:43:17,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:43:17,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 54 letters. Loop has 4 letters. [2020-11-29 18:43:17,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:43:17,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 123 transitions. [2020-11-29 18:43:17,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:43:17,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 95 states and 111 transitions. [2020-11-29 18:43:17,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2020-11-29 18:43:17,648 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2020-11-29 18:43:17,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 111 transitions. [2020-11-29 18:43:17,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:43:17,648 INFO L691 BuchiCegarLoop]: Abstraction has 95 states and 111 transitions. [2020-11-29 18:43:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 111 transitions. [2020-11-29 18:43:17,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 86. [2020-11-29 18:43:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-29 18:43:17,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 100 transitions. [2020-11-29 18:43:17,665 INFO L714 BuchiCegarLoop]: Abstraction has 86 states and 100 transitions. [2020-11-29 18:43:17,666 INFO L594 BuchiCegarLoop]: Abstraction has 86 states and 100 transitions. [2020-11-29 18:43:17,666 INFO L427 BuchiCegarLoop]: ======== Iteration 26============ [2020-11-29 18:43:17,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 100 transitions. [2020-11-29 18:43:17,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:43:17,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:17,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:17,668 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:17,668 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:43:17,668 INFO L794 eck$LassoCheckResult]: Stem: 9199#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 9189#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 9190#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9191#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9185#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9186#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9224#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9222#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9220#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9218#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9216#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9214#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9212#L33-3 assume !(main_~i~0 < 5); 9183#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 9184#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 9206#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9207#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9211#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9226#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9225#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9223#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9221#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9219#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9217#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9215#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9213#L37-3 assume !(main_~i~0 < 5); 9203#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 9178#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 9179#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9180#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9188#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9234#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9181#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9182#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9255#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9254#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 9253#L42-4 main_~nc_B~0 := 0; 9252#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9210#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9201#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9202#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9249#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9236#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9237#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9232#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9233#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9208#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 9209#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 9194#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9195#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9256#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9257#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9258#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9245#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9243#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9240#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9241#L55-2 [2020-11-29 18:43:17,668 INFO L796 eck$LassoCheckResult]: Loop: 9241#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9244#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9241#L55-2 [2020-11-29 18:43:17,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:17,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1967404525, now seen corresponding path program 10 times [2020-11-29 18:43:17,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:17,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736947871] [2020-11-29 18:43:17,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:17,692 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:17,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:17,723 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:17,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:17,724 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 15 times [2020-11-29 18:43:17,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:17,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918733401] [2020-11-29 18:43:17,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:17,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:17,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:17,731 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:17,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:17,732 INFO L82 PathProgramCache]: Analyzing trace with hash -890135690, now seen corresponding path program 11 times [2020-11-29 18:43:17,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:17,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226315663] [2020-11-29 18:43:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:43:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 7 proven. 25 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-11-29 18:43:17,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226315663] [2020-11-29 18:43:18,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79319121] [2020-11-29 18:43:18,000 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 345 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 345 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 18:43:18,195 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-11-29 18:43:18,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 18:43:18,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 18:43:18,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:43:18,721 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-11-29 18:43:18,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 18:43:18,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 22 [2020-11-29 18:43:18,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18530729] [2020-11-29 18:43:18,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 18:43:18,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-11-29 18:43:18,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2020-11-29 18:43:18,843 INFO L87 Difference]: Start difference. First operand 86 states and 100 transitions. cyclomatic complexity: 23 Second operand 22 states. [2020-11-29 18:43:20,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 18:43:20,583 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2020-11-29 18:43:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-11-29 18:43:20,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 120 states and 133 transitions. [2020-11-29 18:43:20,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:43:20,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 120 states to 67 states and 76 transitions. [2020-11-29 18:43:20,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2020-11-29 18:43:20,586 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-11-29 18:43:20,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 76 transitions. [2020-11-29 18:43:20,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:43:20,586 INFO L691 BuchiCegarLoop]: Abstraction has 67 states and 76 transitions. [2020-11-29 18:43:20,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 76 transitions. [2020-11-29 18:43:20,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2020-11-29 18:43:20,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-29 18:43:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2020-11-29 18:43:20,588 INFO L714 BuchiCegarLoop]: Abstraction has 66 states and 75 transitions. [2020-11-29 18:43:20,588 INFO L594 BuchiCegarLoop]: Abstraction has 66 states and 75 transitions. [2020-11-29 18:43:20,588 INFO L427 BuchiCegarLoop]: ======== Iteration 27============ [2020-11-29 18:43:20,588 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 75 transitions. [2020-11-29 18:43:20,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:43:20,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:43:20,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:43:20,590 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:43:20,591 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:43:20,591 INFO L794 eck$LassoCheckResult]: Stem: 9634#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 9626#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 9623#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9624#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9627#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9666#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9665#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9664#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9659#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9656#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9653#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9651#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9647#L33-3 assume !(main_~i~0 < 5); 9621#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 9622#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 9642#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9643#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9645#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9663#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9662#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9661#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9658#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9655#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9652#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9650#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9646#L37-3 assume !(main_~i~0 < 5); 9638#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 9616#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 9617#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9618#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9619#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9620#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9671#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9670#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9669#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9668#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9667#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9625#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 9614#L42-4 main_~nc_B~0 := 0; 9615#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9635#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9636#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9637#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9660#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9657#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9654#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9649#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9648#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9644#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 9628#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 9629#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9630#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9678#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9677#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9674#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9672#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9673#L55-2 [2020-11-29 18:43:20,591 INFO L796 eck$LassoCheckResult]: Loop: 9673#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9675#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9673#L55-2 [2020-11-29 18:43:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:20,592 INFO L82 PathProgramCache]: Analyzing trace with hash 733222867, now seen corresponding path program 12 times [2020-11-29 18:43:20,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:20,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024078502] [2020-11-29 18:43:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:20,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:20,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:20,653 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:20,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:20,653 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 16 times [2020-11-29 18:43:20,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:20,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118188152] [2020-11-29 18:43:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:20,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:20,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:20,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:20,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:43:20,661 INFO L82 PathProgramCache]: Analyzing trace with hash 252541238, now seen corresponding path program 13 times [2020-11-29 18:43:20,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:43:20,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144055241] [2020-11-29 18:43:20,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:43:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:20,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:43:20,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:43:20,722 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:43:57,853 WARN L193 SmtUtils]: Spent 36.95 s on a formula simplification. DAG size of input: 439 DAG size of output: 317 [2020-11-29 18:44:00,843 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification that was a NOOP. DAG size: 165 [2020-11-29 18:44:00,849 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:44:00,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:44:00,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:44:00,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:44:00,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:44:00,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:00,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:44:00,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:44:00,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration27_Lasso [2020-11-29 18:44:00,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:44:00,850 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:44:00,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:00,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:01,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:01,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:05,864 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 93 [2020-11-29 18:44:06,419 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-11-29 18:44:06,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:06,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:06,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:06,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:06,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:06,744 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-11-29 18:44:07,132 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-11-29 18:44:07,517 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-11-29 18:44:09,763 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-11-29 18:44:09,889 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:44:09,889 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 346 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 346 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:09,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:09,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:09,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:09,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:09,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:09,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:44:09,897 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:44:09,900 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 347 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 347 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:09,927 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:09,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:09,928 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:09,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:09,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:09,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:09,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:09,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:09,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 348 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 348 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:09,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:09,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:09,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:09,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:09,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:09,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:09,959 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:09,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:09,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 349 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 349 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:09,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:09,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:09,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:09,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:09,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:09,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,002 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,002 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,004 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 350 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 350 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,033 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 351 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 351 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 352 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 352 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,095 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 353 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 353 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 354 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 354 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 355 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 355 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,191 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 356 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 356 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,223 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 357 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 357 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,255 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 358 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 358 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,283 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 [2020-11-29 18:44:10,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:44:10,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:44:10,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:44:10,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 359 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 359 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,317 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:44:10,317 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:44:10,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 360 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 360 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:44:10,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:44:10,352 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 361 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 361 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:44:10,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:44:10,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 362 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 362 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:44:10,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:44:10,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:44:10,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:44:10,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:44:10,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:44:10,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:44:10,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:44:10,502 INFO L443 ModelExtractionUtils]: Simplification made 21 calls to the SMT solver. [2020-11-29 18:44:10,502 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 363 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 363 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:10,505 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:44:10,507 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 18:44:10,507 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:44:10,507 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_14, ULTIMATE.start_main_~i~0) = 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_14 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~#string_B~0.offset >= 0] [2020-11-29 18:44:11,087 INFO L297 tatePredicateManager]: 48 out of 51 supporting invariants were superfluous and have been removed [2020-11-29 18:44:11,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:44:11,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:11,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-29 18:44:11,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:44:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:11,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:44:11,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:44:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:11,598 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-29 18:44:11,598 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16 Second operand 6 states. [2020-11-29 18:44:11,939 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16. Second operand 6 states. Result 76 states and 89 transitions. Complement of second has 9 states. [2020-11-29 18:44:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:44:11,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 18:44:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2020-11-29 18:44:11,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 56 letters. Loop has 2 letters. [2020-11-29 18:44:11,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:44:11,944 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:44:12,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:12,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-29 18:44:12,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:44:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:12,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:44:12,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:44:12,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:12,312 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-29 18:44:12,312 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16 Second operand 6 states. [2020-11-29 18:44:12,658 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16. Second operand 6 states. Result 76 states and 89 transitions. Complement of second has 9 states. [2020-11-29 18:44:12,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:44:12,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 18:44:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 31 transitions. [2020-11-29 18:44:12,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 31 transitions. Stem has 56 letters. Loop has 2 letters. [2020-11-29 18:44:12,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:44:12,663 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:44:12,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:12,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 20 conjunts are in the unsatisfiable core [2020-11-29 18:44:12,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:44:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:44:13,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 18:44:13,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:44:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:44:13,108 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2020-11-29 18:44:13,108 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16 Second operand 6 states. [2020-11-29 18:44:13,483 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16. Second operand 6 states. Result 84 states and 103 transitions. Complement of second has 10 states. [2020-11-29 18:44:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 4 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:44:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 18:44:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2020-11-29 18:44:13,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 56 letters. Loop has 2 letters. [2020-11-29 18:44:13,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:44:13,488 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 58 letters. Loop has 2 letters. [2020-11-29 18:44:13,488 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:44:13,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 34 transitions. Stem has 56 letters. Loop has 4 letters. [2020-11-29 18:44:13,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:44:13,489 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 103 transitions. [2020-11-29 18:44:13,490 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:44:13,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 78 states and 93 transitions. [2020-11-29 18:44:13,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-11-29 18:44:13,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-11-29 18:44:13,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 93 transitions. [2020-11-29 18:44:13,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:44:13,492 INFO L691 BuchiCegarLoop]: Abstraction has 78 states and 93 transitions. [2020-11-29 18:44:13,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states and 93 transitions. [2020-11-29 18:44:13,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 68. [2020-11-29 18:44:13,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 18:44:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2020-11-29 18:44:13,494 INFO L714 BuchiCegarLoop]: Abstraction has 68 states and 78 transitions. [2020-11-29 18:44:13,494 INFO L594 BuchiCegarLoop]: Abstraction has 68 states and 78 transitions. [2020-11-29 18:44:13,494 INFO L427 BuchiCegarLoop]: ======== Iteration 28============ [2020-11-29 18:44:13,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states and 78 transitions. [2020-11-29 18:44:13,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:44:13,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:44:13,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:44:13,496 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:44:13,496 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:44:13,497 INFO L794 eck$LassoCheckResult]: Stem: 10747#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 10740#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 10736#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10737#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10739#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10779#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10777#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10775#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10772#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10769#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10766#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10764#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10760#L33-3 assume !(main_~i~0 < 5); 10734#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 10735#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 10755#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10756#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10758#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10778#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10776#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10774#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10771#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10768#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10765#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10763#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10759#L37-3 assume !(main_~i~0 < 5); 10751#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 10729#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 10730#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10731#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 10732#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10733#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 10784#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10783#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 10782#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10781#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 10780#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10738#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 10727#L42-4 main_~nc_B~0 := 0; 10728#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10748#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10749#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10750#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10773#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10770#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10767#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10762#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10761#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10757#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 10741#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 10742#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10743#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 10791#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10792#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 10745#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10746#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 10789#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10787#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 10786#L55-2 [2020-11-29 18:44:13,497 INFO L796 eck$LassoCheckResult]: Loop: 10786#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10785#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 10786#L55-2 [2020-11-29 18:44:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:13,497 INFO L82 PathProgramCache]: Analyzing trace with hash 252543160, now seen corresponding path program 14 times [2020-11-29 18:44:13,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:13,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550523517] [2020-11-29 18:44:13,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:13,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:13,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:13,555 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:44:13,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:13,556 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 17 times [2020-11-29 18:44:13,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:13,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647432891] [2020-11-29 18:44:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:13,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:13,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:13,562 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:44:13,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:44:13,563 INFO L82 PathProgramCache]: Analyzing trace with hash -2119156517, now seen corresponding path program 15 times [2020-11-29 18:44:13,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:44:13,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216073717] [2020-11-29 18:44:13,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:44:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:13,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:44:13,628 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:44:13,637 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:44:50,557 WARN L193 SmtUtils]: Spent 36.72 s on a formula simplification. DAG size of input: 463 DAG size of output: 338 [2020-11-29 18:44:53,867 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification that was a NOOP. DAG size: 182 [2020-11-29 18:44:53,872 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:44:53,873 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:44:53,873 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:44:53,873 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:44:53,873 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:44:53,873 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:44:53,873 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:44:53,873 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:44:53,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration28_Lasso [2020-11-29 18:44:53,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:44:53,873 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:44:53,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:53,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:53,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:53,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:53,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:44:53,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,220 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 106 [2020-11-29 18:45:00,871 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-11-29 18:45:00,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,904 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:00,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:01,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:01,313 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-11-29 18:45:01,698 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-29 18:45:02,023 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-11-29 18:45:12,134 WARN L193 SmtUtils]: Spent 9.78 s on a formula simplification. DAG size of input: 115 DAG size of output: 87 [2020-11-29 18:45:12,434 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:45:12,434 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 364 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 18:45:12,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:12,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 364 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 365 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 365 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:12,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:12,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:12,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 366 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 366 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:12,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,541 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:12,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:12,542 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 367 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 367 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:12,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,570 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:12,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:12,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 368 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 368 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:12,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:12,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:12,599 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 369 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 369 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:12,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:12,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:12,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 370 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 370 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:12,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:12,656 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 371 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 371 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:12,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:12,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 372 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 372 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,712 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:12,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:12,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:12,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:12,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:12,723 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:12,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:12,740 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:45:12,785 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2020-11-29 18:45:12,785 INFO L444 ModelExtractionUtils]: 13 out of 31 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 373 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 373 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:12,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:45:12,789 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:45:12,789 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:45:12,789 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_15, ULTIMATE.start_main_~i~0) = 7*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_15 - 6*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 18:45:13,458 INFO L297 tatePredicateManager]: 60 out of 63 supporting invariants were superfluous and have been removed [2020-11-29 18:45:13,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 18:45:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:45:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:45:13,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-29 18:45:13,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:45:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:45:14,215 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 18:45:14,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:45:14,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:45:14,298 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.10 stem predicates 2 loop predicates [2020-11-29 18:45:14,298 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 78 transitions. cyclomatic complexity: 17 Second operand 12 states. [2020-11-29 18:45:15,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 78 transitions. cyclomatic complexity: 17. Second operand 12 states. Result 101 states and 120 transitions. Complement of second has 15 states. [2020-11-29 18:45:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:45:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 18:45:15,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 53 transitions. [2020-11-29 18:45:15,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 53 transitions. Stem has 58 letters. Loop has 2 letters. [2020-11-29 18:45:15,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:45:15,246 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:45:15,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:45:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:45:15,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-29 18:45:15,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:45:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:45:16,033 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 18:45:16,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:45:16,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:45:16,122 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.10 stem predicates 2 loop predicates [2020-11-29 18:45:16,122 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 78 transitions. cyclomatic complexity: 17 Second operand 12 states. [2020-11-29 18:45:17,038 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 78 transitions. cyclomatic complexity: 17. Second operand 12 states. Result 101 states and 120 transitions. Complement of second has 15 states. [2020-11-29 18:45:17,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:45:17,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 18:45:17,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 53 transitions. [2020-11-29 18:45:17,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 53 transitions. Stem has 58 letters. Loop has 2 letters. [2020-11-29 18:45:17,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:45:17,042 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:45:17,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:45:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:45:17,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 34 conjunts are in the unsatisfiable core [2020-11-29 18:45:17,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:45:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:45:17,796 WARN L261 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 18:45:17,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:45:17,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:45:17,881 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.10 stem predicates 2 loop predicates [2020-11-29 18:45:17,881 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 68 states and 78 transitions. cyclomatic complexity: 17 Second operand 12 states. [2020-11-29 18:45:18,778 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 68 states and 78 transitions. cyclomatic complexity: 17. Second operand 12 states. Result 122 states and 153 transitions. Complement of second has 17 states. [2020-11-29 18:45:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2020-11-29 18:45:18,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 18:45:18,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 58 transitions. [2020-11-29 18:45:18,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 58 transitions. Stem has 58 letters. Loop has 2 letters. [2020-11-29 18:45:18,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:45:18,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 58 transitions. Stem has 60 letters. Loop has 2 letters. [2020-11-29 18:45:18,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:45:18,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 58 transitions. Stem has 58 letters. Loop has 4 letters. [2020-11-29 18:45:18,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:45:18,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 122 states and 153 transitions. [2020-11-29 18:45:18,785 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-11-29 18:45:18,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 122 states to 116 states and 143 transitions. [2020-11-29 18:45:18,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2020-11-29 18:45:18,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2020-11-29 18:45:18,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 143 transitions. [2020-11-29 18:45:18,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 18:45:18,786 INFO L691 BuchiCegarLoop]: Abstraction has 116 states and 143 transitions. [2020-11-29 18:45:18,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 143 transitions. [2020-11-29 18:45:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 89. [2020-11-29 18:45:18,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-11-29 18:45:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 104 transitions. [2020-11-29 18:45:18,788 INFO L714 BuchiCegarLoop]: Abstraction has 89 states and 104 transitions. [2020-11-29 18:45:18,788 INFO L594 BuchiCegarLoop]: Abstraction has 89 states and 104 transitions. [2020-11-29 18:45:18,788 INFO L427 BuchiCegarLoop]: ======== Iteration 29============ [2020-11-29 18:45:18,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states and 104 transitions. [2020-11-29 18:45:18,789 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 18:45:18,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 18:45:18,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 18:45:18,790 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 18:45:18,790 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 18:45:18,790 INFO L794 eck$LassoCheckResult]: Stem: 12073#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 12064#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 12065#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12066#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12060#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12061#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12098#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12096#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12094#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12092#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12090#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12088#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12086#L33-3 assume !(main_~i~0 < 5); 12058#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 12059#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 12082#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12083#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12085#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12100#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12099#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12097#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12095#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12093#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12091#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12089#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12087#L37-3 assume !(main_~i~0 < 5); 12077#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 12053#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 12054#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12055#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12056#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12057#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12063#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12110#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12108#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12109#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12138#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12137#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 12136#L42-4 main_~nc_B~0 := 0; 12135#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12134#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12133#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12132#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12131#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12130#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12129#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12128#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12127#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12126#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 12125#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 12124#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12070#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 12122#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12123#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12081#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12116#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 12115#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12113#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12112#L55-2 [2020-11-29 18:45:18,790 INFO L796 eck$LassoCheckResult]: Loop: 12112#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12111#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12112#L55-2 [2020-11-29 18:45:18,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:45:18,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2025703480, now seen corresponding path program 16 times [2020-11-29 18:45:18,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:45:18,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254748856] [2020-11-29 18:45:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:45:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:45:18,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:45:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:45:18,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:45:18,847 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:45:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:45:18,847 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 18 times [2020-11-29 18:45:18,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:45:18,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189944206] [2020-11-29 18:45:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:45:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:45:18,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:45:18,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:45:18,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:45:18,854 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:45:18,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:45:18,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1080861787, now seen corresponding path program 17 times [2020-11-29 18:45:18,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 18:45:18,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672214744] [2020-11-29 18:45:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 18:45:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:45:18,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:45:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 18:45:18,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 18:45:18,926 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 18:45:40,709 WARN L193 SmtUtils]: Spent 21.60 s on a formula simplification. DAG size of input: 463 DAG size of output: 333 [2020-11-29 18:45:42,734 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification that was a NOOP. DAG size: 161 [2020-11-29 18:45:42,739 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 18:45:42,739 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 18:45:42,739 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 18:45:42,739 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 18:45:42,739 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 18:45:42,740 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:42,740 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 18:45:42,740 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 18:45:42,740 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration29_Lasso [2020-11-29 18:45:42,740 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 18:45:42,740 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 18:45:42,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:42,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:48,535 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 106 [2020-11-29 18:45:49,268 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2020-11-29 18:45:49,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 18:45:49,877 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-11-29 18:45:50,261 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-11-29 18:45:59,044 WARN L193 SmtUtils]: Spent 8.45 s on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2020-11-29 18:45:59,285 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-11-29 18:45:59,464 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 18:45:59,465 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 374 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 374 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:59,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:59,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 375 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 375 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 376 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 376 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:59,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:59,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 377 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 377 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,614 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 378 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 378 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 379 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 379 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,674 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,674 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,676 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 380 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 380 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,705 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 381 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 381 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,733 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 382 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 382 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,760 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 383 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 383 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 384 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 384 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 385 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 385 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:59,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:59,868 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 386 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 386 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,898 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 [2020-11-29 18:45:59,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,900 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:59,900 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:59,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 387 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 387 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,930 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 [2020-11-29 18:45:59,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:59,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:59,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 388 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 388 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:45:59,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:45:59,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 389 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 389 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:45:59,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:45:59,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:45:59,996 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:45:59,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:45:59,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:45:59,996 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:45:59,997 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:45:59,997 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:45:59,998 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 390 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 390 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,024 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 [2020-11-29 18:46:00,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 391 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 391 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,061 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:46:00,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,062 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:46:00,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 392 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 392 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,092 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,095 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,095 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 393 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 393 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,125 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,125 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 18:46:00,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 18:46:00,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 18:46:00,127 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 394 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 394 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,158 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,161 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 395 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 395 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,187 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 [2020-11-29 18:46:00,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 396 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 396 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,227 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,227 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,229 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 397 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 397 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,258 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2020-11-29 18:46:00,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,357 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2020-11-29 18:46:00,357 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 398 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 398 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,497 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 399 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 399 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,530 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,530 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 400 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 400 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,560 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 401 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 401 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,593 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 18:46:00,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,594 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 18:46:00,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 402 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 402 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 18:46:00,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 18:46:00,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 18:46:00,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 18:46:00,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 18:46:00,636 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 18:46:00,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 18:46:00,658 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 18:46:00,697 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2020-11-29 18:46:00,697 INFO L444 ModelExtractionUtils]: 16 out of 31 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c9dba208-4b5d-4632-907e-87571c84eab7/bin/uautomizer/z3 Starting monitored process 403 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 403 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 18:46:00,699 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 18:46:00,701 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 18:46:00,701 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 18:46:00,701 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~nc_A~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-29 18:46:01,844 INFO L297 tatePredicateManager]: 78 out of 78 supporting invariants were superfluous and have been removed [2020-11-29 18:46:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:46:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:46:01,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:46:01,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:46:01,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:46:01,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:46:01,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:46:01,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:46:01,993 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:46:01,993 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 104 transitions. cyclomatic complexity: 24 Second operand 3 states. [2020-11-29 18:46:02,022 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 104 transitions. cyclomatic complexity: 24. Second operand 3 states. Result 100 states and 116 transitions. Complement of second has 5 states. [2020-11-29 18:46:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:46:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:46:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-11-29 18:46:02,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 58 letters. Loop has 2 letters. [2020-11-29 18:46:02,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:46:02,027 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:46:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:46:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:46:02,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:46:02,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:46:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:46:02,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:46:02,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:46:02,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:46:02,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:46:02,162 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 104 transitions. cyclomatic complexity: 24 Second operand 3 states. [2020-11-29 18:46:02,189 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 104 transitions. cyclomatic complexity: 24. Second operand 3 states. Result 100 states and 116 transitions. Complement of second has 5 states. [2020-11-29 18:46:02,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:46:02,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:46:02,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-11-29 18:46:02,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 25 transitions. Stem has 58 letters. Loop has 2 letters. [2020-11-29 18:46:02,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:46:02,194 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 18:46:02,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 18:46:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:46:02,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 18:46:02,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:46:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 18:46:02,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 18:46:02,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 18:46:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 18:46:02,331 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 18:46:02,331 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states and 104 transitions. cyclomatic complexity: 24 Second operand 3 states. [2020-11-29 18:46:02,360 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states and 104 transitions. cyclomatic complexity: 24. Second operand 3 states. Result 100 states and 116 transitions. Complement of second has 4 states. [2020-11-29 18:46:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 18:46:02,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 18:46:02,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-11-29 18:46:02,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 58 letters. Loop has 2 letters. [2020-11-29 18:46:02,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:46:02,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 60 letters. Loop has 2 letters. [2020-11-29 18:46:02,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:46:02,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 26 transitions. Stem has 58 letters. Loop has 4 letters. [2020-11-29 18:46:02,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 18:46:02,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 116 transitions. [2020-11-29 18:46:02,366 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:46:02,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 0 states and 0 transitions. [2020-11-29 18:46:02,366 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 18:46:02,366 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 18:46:02,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 18:46:02,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 18:46:02,366 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:46:02,366 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:46:02,366 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 18:46:02,366 INFO L427 BuchiCegarLoop]: ======== Iteration 30============ [2020-11-29 18:46:02,367 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 18:46:02,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 18:46:02,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 18:46:02,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 06:46:02 BoogieIcfgContainer [2020-11-29 18:46:02,373 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 18:46:02,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 18:46:02,374 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 18:46:02,374 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 18:46:02,374 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:01" (3/4) ... [2020-11-29 18:46:02,378 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 18:46:02,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 18:46:02,379 INFO L168 Benchmark]: Toolchain (without parser) took 421667.87 ms. Allocated memory was 79.7 MB in the beginning and 172.0 MB in the end (delta: 92.3 MB). Free memory was 45.3 MB in the beginning and 34.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 102.8 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:02,380 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 79.7 MB. Free memory was 61.4 MB in the beginning and 61.3 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:46:02,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.66 ms. Allocated memory is still 79.7 MB. Free memory was 45.1 MB in the beginning and 56.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:02,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.68 ms. Allocated memory is still 79.7 MB. Free memory was 56.1 MB in the beginning and 54.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:02,381 INFO L168 Benchmark]: Boogie Preprocessor took 33.51 ms. Allocated memory is still 79.7 MB. Free memory was 54.6 MB in the beginning and 53.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:02,382 INFO L168 Benchmark]: RCFGBuilder took 558.37 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 53.1 MB in the beginning and 73.5 MB in the end (delta: -20.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:02,382 INFO L168 Benchmark]: BuchiAutomizer took 420583.15 ms. Allocated memory was 96.5 MB in the beginning and 172.0 MB in the end (delta: 75.5 MB). Free memory was 73.5 MB in the beginning and 35.4 MB in the end (delta: 38.1 MB). Peak memory consumption was 113.9 MB. Max. memory is 16.1 GB. [2020-11-29 18:46:02,383 INFO L168 Benchmark]: Witness Printer took 4.96 ms. Allocated memory is still 172.0 MB. Free memory was 35.4 MB in the beginning and 34.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 18:46:02,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 79.7 MB. Free memory was 61.4 MB in the beginning and 61.3 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 434.66 ms. Allocated memory is still 79.7 MB. Free memory was 45.1 MB in the beginning and 56.3 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.68 ms. Allocated memory is still 79.7 MB. Free memory was 56.1 MB in the beginning and 54.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.51 ms. Allocated memory is still 79.7 MB. Free memory was 54.6 MB in the beginning and 53.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 558.37 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 53.1 MB in the beginning and 73.5 MB in the end (delta: -20.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 420583.15 ms. Allocated memory was 96.5 MB in the beginning and 172.0 MB in the end (delta: 75.5 MB). Free memory was 73.5 MB in the beginning and 35.4 MB in the end (delta: 38.1 MB). Peak memory consumption was 113.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.96 ms. Allocated memory is still 172.0 MB. Free memory was 35.4 MB in the beginning and 34.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 - 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 29 terminating modules (13 trivial, 12 deterministic, 4 nondeterministic). One deterministic module has affine ranking function 9 * unknown-#length-unknown[string_A] + -2 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * string_A + unknown-#length-unknown[string_A] + -1 * nc_A and consists of 3 locations. One deterministic module has affine ranking function -1 * string_B + -1 * nc_B + unknown-#length-unknown[string_B] and consists of 3 locations. One deterministic module has affine ranking function -2 * i + 1 and consists of 10 locations. One deterministic module has affine ranking function -2 * i + 3 and consists of 9 locations. One deterministic module has affine ranking function -2 * i + 3 * unknown-#length-unknown[string_A] and consists of 8 locations. One deterministic module has affine ranking function -1 * string_B + unknown-#length-unknown[string_B] + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 5 and consists of 13 locations. One deterministic module has affine ranking function -4 * j + 3 * unknown-#length-unknown[string_A] and consists of 11 locations. One deterministic module has affine ranking function -2 * i + 5 and consists of 14 locations. One deterministic module has affine ranking function -1 * i + nc_A + j and consists of 4 locations. One deterministic module has affine ranking function nc_A + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function 5 * unknown-#length-unknown[string_A] + -2 * i and consists of 9 locations. One nondeterministic module has affine ranking function 3 * unknown-#length-unknown[string_B] + -2 * i and consists of 7 locations. One nondeterministic module has affine ranking function 7 * unknown-#length-unknown[string_A] + -6 * i and consists of 13 locations. One nondeterministic module has affine ranking function nc_A + -1 * i and consists of 3 locations. 13 modules have a trivial ranking function, the largest among these consists of 22 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 420.5s and 30 iterations. TraceHistogramMax:5. Analysis of lassos took 399.7s. Construction of modules took 3.4s. Büchi inclusion checks took 16.8s. Highest rank in rank-based complementation 3. Minimization of det autom 8. Minimization of nondet autom 21. Automata minimization 0.1s AutomataMinimizationTime, 28 MinimizatonAttempts, 201 StatesRemovedByMinimization, 25 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 89 states and ocurred in iteration 28. Nontrivial modules had stage [12, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 582 SDtfs, 1159 SDslu, 1182 SDs, 0 SdLazy, 2702 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc6 concLT0 SILN0 SILU7 SILI0 SILT0 lasso16 LassoPreprocessingBenchmarks: Lassos: inital436 mio100 ax100 hnf99 lsp96 ukn46 mio100 lsp52 div100 bol100 ite100 ukn100 eq181 hnf83 smp95 dnf617 smp80 tf100 neg95 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 211ms VariablesStem: 7 VariablesLoop: 2 DisjunctsStem: 36 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 76 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...