./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/reducercommutativity/max.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_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/reducercommutativity/max.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 8d92084d5239c17cc1b3b3069e809304d8dd180d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:37:31,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:37:31,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:37:31,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:37:31,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:37:31,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:37:31,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:37:31,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:37:31,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:37:31,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:37:31,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:37:31,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:37:31,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:37:31,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:37:31,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:37:31,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:37:31,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:37:31,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:37:31,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:37:31,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:37:31,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:37:31,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:37:31,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:37:31,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:37:31,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:37:31,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:37:31,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:37:31,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:37:31,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:37:31,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:37:31,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:37:31,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:37:31,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:37:31,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:37:31,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:37:31,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:37:31,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:37:31,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:37:31,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:37:31,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:37:31,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:37:31,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:37:31,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:37:31,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:37:31,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:37:31,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:37:31,525 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:37:31,525 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:37:31,525 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:37:31,526 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:37:31,526 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:37:31,526 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:37:31,527 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:37:31,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:37:31,528 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:37:31,528 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:37:31,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:37:31,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:37:31,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:37:31,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:37:31,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:37:31,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:37:31,529 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:37:31,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:37:31,530 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:37:31,530 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:37:31,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:37:31,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:37:31,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:37:31,531 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:37:31,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:37:31,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:37:31,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:37:31,532 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:37:31,533 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:37:31,533 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_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d92084d5239c17cc1b3b3069e809304d8dd180d [2020-11-29 23:37:31,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:37:31,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:37:31,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:37:31,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:37:31,875 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:37:31,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/../../sv-benchmarks/c/reducercommutativity/max.i [2020-11-29 23:37:31,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/data/a4479bb77/b84090b2534a47cfa29199f873845ab6/FLAGde3658233 [2020-11-29 23:37:32,396 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:37:32,397 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/sv-benchmarks/c/reducercommutativity/max.i [2020-11-29 23:37:32,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/data/a4479bb77/b84090b2534a47cfa29199f873845ab6/FLAGde3658233 [2020-11-29 23:37:32,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/data/a4479bb77/b84090b2534a47cfa29199f873845ab6 [2020-11-29 23:37:32,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:37:32,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:37:32,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:37:32,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:37:32,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:37:32,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:37:32" (1/1) ... [2020-11-29 23:37:32,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367dc06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:32, skipping insertion in model container [2020-11-29 23:37:32,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:37:32" (1/1) ... [2020-11-29 23:37:32,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:37:32,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:37:33,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:37:33,028 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:37:33,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:37:33,070 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:37:33,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33 WrapperNode [2020-11-29 23:37:33,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:37:33,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:37:33,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:37:33,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:37:33,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:37:33,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:37:33,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:37:33,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:37:33,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... [2020-11-29 23:37:33,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:37:33,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:37:33,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:37:33,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:37:33,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:37:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:37:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:37:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:37:33,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:37:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:37:33,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:37:33,769 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:37:33,769 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 23:37:33,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:37:33 BoogieIcfgContainer [2020-11-29 23:37:33,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:37:33,772 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:37:33,773 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:37:33,776 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:37:33,777 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:37:33,777 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:37:32" (1/3) ... [2020-11-29 23:37:33,779 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48700507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:37:33, skipping insertion in model container [2020-11-29 23:37:33,779 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:37:33,779 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:37:33" (2/3) ... [2020-11-29 23:37:33,780 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48700507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:37:33, skipping insertion in model container [2020-11-29 23:37:33,780 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:37:33,780 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:37:33" (3/3) ... [2020-11-29 23:37:33,782 INFO L373 chiAutomizerObserver]: Analyzing ICFG max.i [2020-11-29 23:37:33,828 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:37:33,829 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:37:33,829 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:37:33,829 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:37:33,829 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:37:33,830 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:37:33,830 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:37:33,830 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:37:33,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2020-11-29 23:37:33,862 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-11-29 23:37:33,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:33,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:33,869 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:37:33,869 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:37:33,869 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:37:33,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2020-11-29 23:37:33,872 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2020-11-29 23:37:33,873 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:33,873 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:33,873 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:37:33,874 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:37:33,880 INFO L794 eck$LassoCheckResult]: Stem: 33#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 10#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 31#L31true assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 8#L22-3true [2020-11-29 23:37:33,881 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-3true assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 14#L23true assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 12#L23-2true max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 9#L22-2true max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 8#L22-3true [2020-11-29 23:37:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:33,887 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-11-29 23:37:33,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:33,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983890065] [2020-11-29 23:37:33,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:33,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:34,021 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:34,040 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:34,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1326822, now seen corresponding path program 1 times [2020-11-29 23:37:34,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:34,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530991667] [2020-11-29 23:37:34,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:34,053 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:34,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:34,077 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:34,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:34,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1805089543, now seen corresponding path program 1 times [2020-11-29 23:37:34,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:34,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704780727] [2020-11-29 23:37:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:34,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:34,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:34,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:34,682 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2020-11-29 23:37:34,837 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-29 23:37:34,862 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:37:34,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:37:34,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:37:34,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:37:34,863 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:37:34,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:34,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:37:34,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:37:34,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration1_Lasso [2020-11-29 23:37:34,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:37:34,864 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:37:34,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,912 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 23:37:34,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,931 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 23:37:34,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,938 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 23:37:34,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,949 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 23:37:34,952 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 23:37:34,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:34,960 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 23:37:34,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:35,461 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2020-11-29 23:37:35,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:35,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:35,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:35,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:35,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:35,573 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 23:37:36,151 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:37:36,155 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:37:36,170 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 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,175 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,176 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:37:36,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,239 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:37:36,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,288 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) [2020-11-29 23:37:36,326 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 23:37:36,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:37:36,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,337 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:37:36,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,384 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) [2020-11-29 23:37:36,429 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 23:37:36,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:37:36,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:37:36,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:36,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,644 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 23:37:36,647 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:36,683 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,693 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,718 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 23:37:36,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,722 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,749 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:36,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:36,800 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 23:37:36,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:36,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:36,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:36,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:36,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:37:36,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:37:36,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:36,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:36,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:36,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:36,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:36,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:36,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:37:36,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:37:36,908 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:37:37,014 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 23:37:37,014 INFO L444 ModelExtractionUtils]: 11 out of 28 variables were initially zero. Simplification set additionally 14 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:37:37,041 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:37,064 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:37:37,065 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:37:37,065 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_max_~i~0, ~N~0) = -1*ULTIMATE.start_max_~i~0 + 1*~N~0 Supporting invariants [] [2020-11-29 23:37:37,232 INFO L297 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2020-11-29 23:37:37,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:37,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:37:37,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:37,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:37:37,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:37,318 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 23:37:37,333 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 23:37:37,334 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states. Second operand 3 states. [2020-11-29 23:37:37,384 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states.. Second operand 3 states. Result 65 states and 91 transitions. Complement of second has 8 states. [2020-11-29 23:37:37,384 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 23:37:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:37:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 48 transitions. [2020-11-29 23:37:37,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 3 letters. Loop has 4 letters. [2020-11-29 23:37:37,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:37:37,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 7 letters. Loop has 4 letters. [2020-11-29 23:37:37,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:37:37,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 48 transitions. Stem has 3 letters. Loop has 8 letters. [2020-11-29 23:37:37,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:37:37,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 91 transitions. [2020-11-29 23:37:37,395 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-29 23:37:37,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 23 states and 32 transitions. [2020-11-29 23:37:37,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-29 23:37:37,400 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-29 23:37:37,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 32 transitions. [2020-11-29 23:37:37,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:37,401 INFO L691 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-11-29 23:37:37,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 32 transitions. [2020-11-29 23:37:37,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-29 23:37:37,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 23:37:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 32 transitions. [2020-11-29 23:37:37,426 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-11-29 23:37:37,426 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 32 transitions. [2020-11-29 23:37:37,426 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:37:37,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 32 transitions. [2020-11-29 23:37:37,427 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-29 23:37:37,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:37,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:37,427 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 23:37:37,428 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:37:37,428 INFO L794 eck$LassoCheckResult]: Stem: 317#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 314#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 315#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 309#L22-3 assume !(max_~i~0 < ~N~0); 305#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 306#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 298#L22-8 [2020-11-29 23:37:37,428 INFO L796 eck$LassoCheckResult]: Loop: 298#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 312#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 304#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 297#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 298#L22-8 [2020-11-29 23:37:37,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:37,429 INFO L82 PathProgramCache]: Analyzing trace with hash 889511083, now seen corresponding path program 1 times [2020-11-29 23:37:37,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:37,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2287953] [2020-11-29 23:37:37,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:37:37,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2287953] [2020-11-29 23:37:37,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:37:37,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:37:37,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461263899] [2020-11-29 23:37:37,493 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:37:37,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:37,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 1 times [2020-11-29 23:37:37,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:37,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975929054] [2020-11-29 23:37:37,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:37,508 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:37,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:37,522 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:37,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:37:37,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 23:37:37,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 23:37:37,582 INFO L87 Difference]: Start difference. First operand 23 states and 32 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-11-29 23:37:37,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:37:37,644 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-11-29 23:37:37,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 23:37:37,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 33 transitions. [2020-11-29 23:37:37,646 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-29 23:37:37,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 26 states and 33 transitions. [2020-11-29 23:37:37,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-29 23:37:37,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-29 23:37:37,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2020-11-29 23:37:37,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:37,647 INFO L691 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-29 23:37:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2020-11-29 23:37:37,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2020-11-29 23:37:37,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 23:37:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2020-11-29 23:37:37,649 INFO L714 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-11-29 23:37:37,649 INFO L594 BuchiCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-11-29 23:37:37,649 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:37:37,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 29 transitions. [2020-11-29 23:37:37,650 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-29 23:37:37,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:37,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:37,651 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:37:37,651 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:37:37,651 INFO L794 eck$LassoCheckResult]: Stem: 372#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 369#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 370#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 364#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 365#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 371#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 367#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 366#L22-3 assume !(max_~i~0 < ~N~0); 359#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 360#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 353#L22-8 [2020-11-29 23:37:37,651 INFO L796 eck$LassoCheckResult]: Loop: 353#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 368#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 361#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 352#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 353#L22-8 [2020-11-29 23:37:37,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:37,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1805667996, now seen corresponding path program 1 times [2020-11-29 23:37:37,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:37,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519170990] [2020-11-29 23:37:37,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:37,715 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 23:37:37,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519170990] [2020-11-29 23:37:37,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927012028] [2020-11-29 23:37:37,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:37:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:37,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:37:37,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:37,868 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 23:37:37,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:37:37,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-11-29 23:37:37,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052641871] [2020-11-29 23:37:37,870 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:37:37,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:37,870 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 2 times [2020-11-29 23:37:37,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:37,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646124125] [2020-11-29 23:37:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:37,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:37,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:37,887 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:37,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:37:37,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:37:37,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:37:37,944 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-11-29 23:37:38,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:37:38,019 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-11-29 23:37:38,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:37:38,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2020-11-29 23:37:38,021 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-29 23:37:38,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 38 transitions. [2020-11-29 23:37:38,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-11-29 23:37:38,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-29 23:37:38,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 38 transitions. [2020-11-29 23:37:38,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:38,022 INFO L691 BuchiCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-29 23:37:38,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 38 transitions. [2020-11-29 23:37:38,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-11-29 23:37:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 23:37:38,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2020-11-29 23:37:38,025 INFO L714 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-11-29 23:37:38,025 INFO L594 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2020-11-29 23:37:38,025 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 23:37:38,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2020-11-29 23:37:38,026 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-29 23:37:38,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:38,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:38,027 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-11-29 23:37:38,027 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:37:38,027 INFO L794 eck$LassoCheckResult]: Stem: 463#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 460#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 461#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 453#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 454#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 467#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 466#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 455#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 456#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 462#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 457#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 458#L22-3 assume !(max_~i~0 < ~N~0); 448#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 449#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 442#L22-8 [2020-11-29 23:37:38,027 INFO L796 eck$LassoCheckResult]: Loop: 442#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 459#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 450#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 441#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 442#L22-8 [2020-11-29 23:37:38,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:38,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1818198429, now seen corresponding path program 2 times [2020-11-29 23:37:38,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:38,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910959263] [2020-11-29 23:37:38,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:38,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:38,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:38,141 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:38,147 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 3 times [2020-11-29 23:37:38,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:38,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064441376] [2020-11-29 23:37:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:38,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:38,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:38,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:38,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:38,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1198284866, now seen corresponding path program 1 times [2020-11-29 23:37:38,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:38,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610348182] [2020-11-29 23:37:38,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:37:38,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610348182] [2020-11-29 23:37:38,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898192238] [2020-11-29 23:37:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:37:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:38,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 35 conjunts are in the unsatisfiable core [2020-11-29 23:37:38,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:38,883 INFO L350 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2020-11-29 23:37:38,883 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 20 [2020-11-29 23:37:38,884 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:37:38,894 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:37:38,895 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:37:38,895 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:14 [2020-11-29 23:37:38,931 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2020-11-29 23:37:38,932 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:37:38,937 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:37:38,937 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:37:38,938 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:18, output treesize:7 [2020-11-29 23:37:38,966 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:37:38,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:37:38,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2020-11-29 23:37:38,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942809105] [2020-11-29 23:37:39,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:37:39,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-29 23:37:39,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-29 23:37:39,010 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 17 states. [2020-11-29 23:37:40,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:37:40,366 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2020-11-29 23:37:40,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-29 23:37:40,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 159 transitions. [2020-11-29 23:37:40,372 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 34 [2020-11-29 23:37:40,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 125 states and 159 transitions. [2020-11-29 23:37:40,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 106 [2020-11-29 23:37:40,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2020-11-29 23:37:40,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 125 states and 159 transitions. [2020-11-29 23:37:40,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:40,377 INFO L691 BuchiCegarLoop]: Abstraction has 125 states and 159 transitions. [2020-11-29 23:37:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states and 159 transitions. [2020-11-29 23:37:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 39. [2020-11-29 23:37:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-29 23:37:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-11-29 23:37:40,384 INFO L714 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-11-29 23:37:40,384 INFO L594 BuchiCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-11-29 23:37:40,384 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 23:37:40,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 50 transitions. [2020-11-29 23:37:40,385 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2020-11-29 23:37:40,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:40,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:40,386 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:37:40,386 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:37:40,386 INFO L794 eck$LassoCheckResult]: Stem: 710#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 707#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 708#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 700#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 701#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 721#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 726#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 725#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 711#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 712#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 724#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 717#L22-3 assume !(max_~i~0 < ~N~0); 718#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 716#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 689#L22-8 [2020-11-29 23:37:40,386 INFO L796 eck$LassoCheckResult]: Loop: 689#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 715#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 697#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 688#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 689#L22-8 [2020-11-29 23:37:40,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:40,387 INFO L82 PathProgramCache]: Analyzing trace with hash -2083741857, now seen corresponding path program 1 times [2020-11-29 23:37:40,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:40,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479195550] [2020-11-29 23:37:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:40,404 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:40,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:40,438 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:40,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:40,439 INFO L82 PathProgramCache]: Analyzing trace with hash 2034854, now seen corresponding path program 4 times [2020-11-29 23:37:40,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:40,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789048915] [2020-11-29 23:37:40,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:40,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:40,447 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:40,448 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:40,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:40,449 INFO L82 PathProgramCache]: Analyzing trace with hash -2085565180, now seen corresponding path program 1 times [2020-11-29 23:37:40,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:40,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201531896] [2020-11-29 23:37:40,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:40,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:40,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:40,490 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:41,589 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 195 DAG size of output: 174 [2020-11-29 23:37:41,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 23:37:42,631 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2020-11-29 23:37:42,639 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:37:42,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:37:42,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:37:42,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:37:42,639 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:37:42,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:42,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:37:42,640 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:37:42,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration5_Lasso [2020-11-29 23:37:42,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:37:42,640 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:37:42,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:42,720 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 23:37:42,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:43,475 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-11-29 23:37:44,197 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2020-11-29 23:37:44,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:44,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:44,345 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 23:37:44,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:44,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:44,783 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2020-11-29 23:37:44,891 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2020-11-29 23:37:45,363 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2020-11-29 23:37:45,490 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:37:45,491 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:37:45,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,533 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,533 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,533 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,533 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:37:45,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:37:45,593 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,641 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,643 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,643 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,643 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,643 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,666 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,700 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:37:45,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:37:45,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:45,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,748 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:45,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:45,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:45,819 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 23:37:45,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,821 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:45,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:45,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,899 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 23:37:45,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:37:45,930 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 23:37:45,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,931 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:37:45,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:37:45,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,932 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:37:45,932 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:37:45,933 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:45,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:37:45,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:37:45,958 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 23:37:45,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:37:45,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:37:45,985 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 23:37:45,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:37:46,010 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:37:46,063 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2020-11-29 23:37:46,063 INFO L444 ModelExtractionUtils]: 7 out of 34 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:46,065 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:37:46,067 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:37:46,068 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:37:46,068 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_max_~i~0, ~N~0) = -1*ULTIMATE.start_max_~i~0 + 1*~N~0 Supporting invariants [] [2020-11-29 23:37:46,319 INFO L297 tatePredicateManager]: 55 out of 55 supporting invariants were superfluous and have been removed [2020-11-29 23:37:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:46,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:46,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:37:46,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:46,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:37:46,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:46,428 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 23:37:46,428 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 23:37:46,428 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16 Second operand 3 states. [2020-11-29 23:37:46,461 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 50 transitions. cyclomatic complexity: 16. Second operand 3 states. Result 49 states and 67 transitions. Complement of second has 7 states. [2020-11-29 23:37:46,463 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 23:37:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:37:46,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-11-29 23:37:46,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 14 letters. Loop has 4 letters. [2020-11-29 23:37:46,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:37:46,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 18 letters. Loop has 4 letters. [2020-11-29 23:37:46,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:37:46,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 14 letters. Loop has 8 letters. [2020-11-29 23:37:46,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:37:46,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 67 transitions. [2020-11-29 23:37:46,466 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 23:37:46,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 40 states and 52 transitions. [2020-11-29 23:37:46,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-11-29 23:37:46,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-11-29 23:37:46,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 52 transitions. [2020-11-29 23:37:46,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:46,467 INFO L691 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-11-29 23:37:46,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 52 transitions. [2020-11-29 23:37:46,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-11-29 23:37:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 23:37:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 52 transitions. [2020-11-29 23:37:46,470 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-11-29 23:37:46,470 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 52 transitions. [2020-11-29 23:37:46,470 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 23:37:46,471 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 52 transitions. [2020-11-29 23:37:46,471 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 23:37:46,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:46,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:46,475 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:37:46,475 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:37:46,475 INFO L794 eck$LassoCheckResult]: Stem: 1095#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1092#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1093#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1086#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1087#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1096#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1113#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1112#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1104#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1110#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1108#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1103#L22-3 assume !(max_~i~0 < ~N~0); 1081#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1082#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1099#L22-8 assume !(max_~i~0 < ~N~0); 1097#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1098#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1084#L43-3 [2020-11-29 23:37:46,475 INFO L796 eck$LassoCheckResult]: Loop: 1084#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1085#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1084#L43-3 [2020-11-29 23:37:46,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:46,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1591298555, now seen corresponding path program 1 times [2020-11-29 23:37:46,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:46,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240090779] [2020-11-29 23:37:46,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:46,527 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:37:46,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240090779] [2020-11-29 23:37:46,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:37:46,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:37:46,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414240527] [2020-11-29 23:37:46,528 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:37:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:46,528 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 1 times [2020-11-29 23:37:46,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:46,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764254644] [2020-11-29 23:37:46,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:46,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:46,534 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:46,535 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:46,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:37:46,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:37:46,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:37:46,600 INFO L87 Difference]: Start difference. First operand 40 states and 52 transitions. cyclomatic complexity: 17 Second operand 4 states. [2020-11-29 23:37:46,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:37:46,666 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-11-29 23:37:46,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:37:46,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 59 transitions. [2020-11-29 23:37:46,668 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 23:37:46,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 47 states and 59 transitions. [2020-11-29 23:37:46,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2020-11-29 23:37:46,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-29 23:37:46,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 59 transitions. [2020-11-29 23:37:46,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:46,670 INFO L691 BuchiCegarLoop]: Abstraction has 47 states and 59 transitions. [2020-11-29 23:37:46,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 59 transitions. [2020-11-29 23:37:46,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40. [2020-11-29 23:37:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-11-29 23:37:46,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2020-11-29 23:37:46,673 INFO L714 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-11-29 23:37:46,673 INFO L594 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2020-11-29 23:37:46,673 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-11-29 23:37:46,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2020-11-29 23:37:46,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 23:37:46,674 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:46,674 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:46,674 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:37:46,675 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:37:46,675 INFO L794 eck$LassoCheckResult]: Stem: 1190#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1186#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1187#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1180#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1181#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1188#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1189#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1207#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1200#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1205#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1203#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1199#L22-3 assume !(max_~i~0 < ~N~0); 1198#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1197#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1194#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1195#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1175#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1168#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1169#L22-8 assume !(max_~i~0 < ~N~0); 1192#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1193#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1178#L43-3 [2020-11-29 23:37:46,675 INFO L796 eck$LassoCheckResult]: Loop: 1178#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1179#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1178#L43-3 [2020-11-29 23:37:46,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:46,675 INFO L82 PathProgramCache]: Analyzing trace with hash -18080898, now seen corresponding path program 1 times [2020-11-29 23:37:46,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:46,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833554542] [2020-11-29 23:37:46,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:46,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:37:46,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833554542] [2020-11-29 23:37:46,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628612504] [2020-11-29 23:37:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:37:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:46,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:37:46,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 23:37:46,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:37:46,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-29 23:37:46,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114441637] [2020-11-29 23:37:46,848 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:37:46,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:46,848 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 2 times [2020-11-29 23:37:46,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:46,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669813049] [2020-11-29 23:37:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:46,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:46,854 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:46,856 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:46,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:37:46,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 23:37:46,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-11-29 23:37:46,939 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. cyclomatic complexity: 15 Second operand 7 states. [2020-11-29 23:37:47,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:37:47,071 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2020-11-29 23:37:47,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:37:47,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 75 transitions. [2020-11-29 23:37:47,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 23:37:47,074 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 60 states and 75 transitions. [2020-11-29 23:37:47,074 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2020-11-29 23:37:47,074 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2020-11-29 23:37:47,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 75 transitions. [2020-11-29 23:37:47,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:47,075 INFO L691 BuchiCegarLoop]: Abstraction has 60 states and 75 transitions. [2020-11-29 23:37:47,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 75 transitions. [2020-11-29 23:37:47,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2020-11-29 23:37:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-29 23:37:47,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 55 transitions. [2020-11-29 23:37:47,078 INFO L714 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-11-29 23:37:47,078 INFO L594 BuchiCegarLoop]: Abstraction has 44 states and 55 transitions. [2020-11-29 23:37:47,078 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-11-29 23:37:47,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 55 transitions. [2020-11-29 23:37:47,079 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 23:37:47,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:47,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:47,080 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:37:47,080 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:37:47,080 INFO L794 eck$LassoCheckResult]: Stem: 1363#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1360#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1359#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1352#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1353#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1380#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1381#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1354#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1355#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1379#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1378#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1377#L22-3 assume !(max_~i~0 < ~N~0); 1347#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1348#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1376#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1375#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1374#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1373#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1369#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1358#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1349#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1340#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1341#L22-8 assume !(max_~i~0 < ~N~0); 1365#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1366#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1350#L43-3 [2020-11-29 23:37:47,080 INFO L796 eck$LassoCheckResult]: Loop: 1350#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1351#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1350#L43-3 [2020-11-29 23:37:47,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:47,081 INFO L82 PathProgramCache]: Analyzing trace with hash -2011161481, now seen corresponding path program 2 times [2020-11-29 23:37:47,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:47,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403578153] [2020-11-29 23:37:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:37:47,399 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-29 23:37:47,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403578153] [2020-11-29 23:37:47,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108256487] [2020-11-29 23:37:47,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:37:47,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 23:37:47,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:37:47,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 46 conjunts are in the unsatisfiable core [2020-11-29 23:37:47,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:37:47,643 INFO L350 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2020-11-29 23:37:47,643 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 23 [2020-11-29 23:37:47,648 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:37:47,658 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:37:47,658 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:37:47,659 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:16 [2020-11-29 23:37:47,747 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-11-29 23:37:47,748 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-29 23:37:47,778 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-29 23:37:47,778 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-29 23:37:47,778 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:7 [2020-11-29 23:37:47,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 23:37:47,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:37:47,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2020-11-29 23:37:47,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535022013] [2020-11-29 23:37:47,820 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:37:47,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:47,820 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 3 times [2020-11-29 23:37:47,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:47,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676568678] [2020-11-29 23:37:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:47,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:47,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:47,839 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:47,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:37:47,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-11-29 23:37:47,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-11-29 23:37:47,921 INFO L87 Difference]: Start difference. First operand 44 states and 55 transitions. cyclomatic complexity: 16 Second operand 18 states. [2020-11-29 23:37:49,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:37:49,189 INFO L93 Difference]: Finished difference Result 132 states and 166 transitions. [2020-11-29 23:37:49,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-29 23:37:49,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 166 transitions. [2020-11-29 23:37:49,191 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 22 [2020-11-29 23:37:49,193 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 132 states and 166 transitions. [2020-11-29 23:37:49,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2020-11-29 23:37:49,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-11-29 23:37:49,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 132 states and 166 transitions. [2020-11-29 23:37:49,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:37:49,195 INFO L691 BuchiCegarLoop]: Abstraction has 132 states and 166 transitions. [2020-11-29 23:37:49,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states and 166 transitions. [2020-11-29 23:37:49,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 56. [2020-11-29 23:37:49,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-11-29 23:37:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2020-11-29 23:37:49,200 INFO L714 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-11-29 23:37:49,201 INFO L594 BuchiCegarLoop]: Abstraction has 56 states and 70 transitions. [2020-11-29 23:37:49,201 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-11-29 23:37:49,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 70 transitions. [2020-11-29 23:37:49,201 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-29 23:37:49,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:37:49,201 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:37:49,214 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:37:49,215 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:37:49,215 INFO L794 eck$LassoCheckResult]: Stem: 1659#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 1656#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 1657#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1649#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1650#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1668#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1669#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1651#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1652#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1658#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1654#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1655#L22-3 assume !(max_~i~0 < ~N~0); 1645#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1646#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 1662#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1663#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 1672#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1671#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1664#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 1665#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 1644#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 1637#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 1638#L22-8 assume !(max_~i~0 < ~N~0); 1660#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 1661#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 1647#L43-3 [2020-11-29 23:37:49,216 INFO L796 eck$LassoCheckResult]: Loop: 1647#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 1648#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 1647#L43-3 [2020-11-29 23:37:49,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:49,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1618134471, now seen corresponding path program 1 times [2020-11-29 23:37:49,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:49,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315893627] [2020-11-29 23:37:49,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:49,279 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:49,343 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:49,358 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:49,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:49,359 INFO L82 PathProgramCache]: Analyzing trace with hash 2851, now seen corresponding path program 4 times [2020-11-29 23:37:49,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:49,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302301303] [2020-11-29 23:37:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:49,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:49,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:49,368 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:49,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:37:49,371 INFO L82 PathProgramCache]: Analyzing trace with hash -249063589, now seen corresponding path program 1 times [2020-11-29 23:37:49,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:37:49,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622808054] [2020-11-29 23:37:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:37:49,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:49,424 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:37:49,476 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:37:49,486 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:37:51,403 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 256 DAG size of output: 219 [2020-11-29 23:37:51,412 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:37:54,560 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 195 DAG size of output: 165 [2020-11-29 23:37:54,563 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:37:54,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:37:54,564 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:37:54,564 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:37:54,564 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:37:54,564 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:37:54,564 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:37:54,564 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:37:54,564 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration9_Lasso [2020-11-29 23:37:54,564 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:37:54,564 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:37:54,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:54,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:56,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-11-29 23:37:57,876 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 105 [2020-11-29 23:37:58,058 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2020-11-29 23:37:58,059 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 23:37:58,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:58,064 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 23:37:58,089 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 23:37:58,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:37:58,095 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 23:37:59,202 WARN L193 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 126 [2020-11-29 23:37:59,267 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-11-29 23:38:00,687 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 120 DAG size of output: 116 [2020-11-29 23:38:00,752 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:38:00,752 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:00,760 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 23:38:00,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:00,784 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 23:38:00,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:00,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:00,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) [2020-11-29 23:38:00,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:00,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:00,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:00,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:00,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:00,874 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 23:38:00,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,876 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,877 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:00,898 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 23:38:00,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,900 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:00,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:00,941 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,941 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,941 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,941 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,941 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:00,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:00,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,969 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:00,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:00,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:00,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:00,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:00,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:00,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:00,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:00,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:00,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,043 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,043 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,073 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,104 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:01,129 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 23:38:01,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,136 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,167 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,191 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 23:38:01,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,193 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,193 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,224 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 23:38:01,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,226 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,230 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,236 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,261 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,285 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,312 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,340 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,340 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,343 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,368 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,389 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 23:38:01,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,413 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 23:38:01,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:01,416 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:01,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:01,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:01,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:01,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:01,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,488 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 23:38:01,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:01,491 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 23:38:01,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:01,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:01,528 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 23:38:01,528 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:01,570 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:38:01,649 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-29 23:38:01,649 INFO L444 ModelExtractionUtils]: 20 out of 67 variables were initially zero. Simplification set additionally 43 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:01,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:38:01,653 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:38:01,654 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:38:01,654 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~#x~0.offset, v_rep(select #length ULTIMATE.start_main_~#x~0.base)_3) = -4*ULTIMATE.start_main_~i~1 - 1*ULTIMATE.start_main_~#x~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_3 Supporting invariants [] [2020-11-29 23:38:02,120 INFO L297 tatePredicateManager]: 76 out of 76 supporting invariants were superfluous and have been removed [2020-11-29 23:38:02,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 23:38:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:02,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:38:02,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:02,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:38:02,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:02,192 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 23:38:02,192 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 23:38:02,193 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 70 transitions. cyclomatic complexity: 20 Second operand 3 states. [2020-11-29 23:38:02,245 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 70 transitions. cyclomatic complexity: 20. Second operand 3 states. Result 63 states and 82 transitions. Complement of second has 6 states. [2020-11-29 23:38:02,246 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 23:38:02,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:38:02,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-11-29 23:38:02,247 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 25 letters. Loop has 2 letters. [2020-11-29 23:38:02,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:02,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 27 letters. Loop has 2 letters. [2020-11-29 23:38:02,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:02,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 25 letters. Loop has 4 letters. [2020-11-29 23:38:02,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:02,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2020-11-29 23:38:02,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:02,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 57 states and 72 transitions. [2020-11-29 23:38:02,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-11-29 23:38:02,251 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-11-29 23:38:02,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 72 transitions. [2020-11-29 23:38:02,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:38:02,251 INFO L691 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-11-29 23:38:02,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 72 transitions. [2020-11-29 23:38:02,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-29 23:38:02,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-29 23:38:02,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2020-11-29 23:38:02,255 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-11-29 23:38:02,255 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 72 transitions. [2020-11-29 23:38:02,255 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-11-29 23:38:02,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 72 transitions. [2020-11-29 23:38:02,256 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:02,256 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:02,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:02,257 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:38:02,257 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:38:02,258 INFO L794 eck$LassoCheckResult]: Stem: 2188#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2185#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2186#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2178#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2179#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2217#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2216#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2214#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2206#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2211#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2208#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2205#L22-3 assume !(max_~i~0 < ~N~0); 2203#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2201#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2199#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2198#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2184#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2164#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2165#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2195#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2197#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2196#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2194#L22-8 assume !(max_~i~0 < ~N~0); 2189#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2190#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 2175#L43-3 assume !(main_~i~1 < ~N~0 - 1); 2169#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2170#L22-13 [2020-11-29 23:38:02,258 INFO L796 eck$LassoCheckResult]: Loop: 2170#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2168#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2166#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2167#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2170#L22-13 [2020-11-29 23:38:02,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:02,259 INFO L82 PathProgramCache]: Analyzing trace with hash -249063647, now seen corresponding path program 1 times [2020-11-29 23:38:02,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:02,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483364091] [2020-11-29 23:38:02,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 23:38:02,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483364091] [2020-11-29 23:38:02,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:38:02,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:38:02,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122089278] [2020-11-29 23:38:02,323 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:38:02,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:02,323 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 1 times [2020-11-29 23:38:02,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:02,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405995552] [2020-11-29 23:38:02,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,337 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:02,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:38:02,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:38:02,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:38:02,379 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. cyclomatic complexity: 21 Second operand 4 states. [2020-11-29 23:38:02,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:38:02,405 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-11-29 23:38:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:38:02,406 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 72 transitions. [2020-11-29 23:38:02,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:02,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 72 transitions. [2020-11-29 23:38:02,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-11-29 23:38:02,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-11-29 23:38:02,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 72 transitions. [2020-11-29 23:38:02,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:38:02,408 INFO L691 BuchiCegarLoop]: Abstraction has 58 states and 72 transitions. [2020-11-29 23:38:02,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 72 transitions. [2020-11-29 23:38:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2020-11-29 23:38:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-29 23:38:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2020-11-29 23:38:02,411 INFO L714 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-11-29 23:38:02,411 INFO L594 BuchiCegarLoop]: Abstraction has 57 states and 71 transitions. [2020-11-29 23:38:02,411 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-11-29 23:38:02,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 71 transitions. [2020-11-29 23:38:02,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:02,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:02,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:02,413 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:38:02,413 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:38:02,413 INFO L794 eck$LassoCheckResult]: Stem: 2310#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2306#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2307#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2299#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2300#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2308#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2309#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2342#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2335#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2341#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2338#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2334#L22-3 assume !(max_~i~0 < ~N~0); 2329#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2326#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2325#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2323#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2305#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2322#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2321#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2318#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2320#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2319#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2317#L22-8 assume !(max_~i~0 < ~N~0); 2312#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2313#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 2296#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 2297#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2298#L43-3 assume !(main_~i~1 < ~N~0 - 1); 2291#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2292#L22-13 [2020-11-29 23:38:02,413 INFO L796 eck$LassoCheckResult]: Loop: 2292#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2290#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2288#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2289#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2292#L22-13 [2020-11-29 23:38:02,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:02,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1168061379, now seen corresponding path program 1 times [2020-11-29 23:38:02,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:02,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708787180] [2020-11-29 23:38:02,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,459 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,500 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,508 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:02,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:02,509 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 2 times [2020-11-29 23:38:02,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:02,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248985350] [2020-11-29 23:38:02,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,514 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,516 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:02,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:02,517 INFO L82 PathProgramCache]: Analyzing trace with hash 934015144, now seen corresponding path program 1 times [2020-11-29 23:38:02,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:02,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888181043] [2020-11-29 23:38:02,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,563 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:02,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:02,624 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:05,125 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 308 DAG size of output: 251 [2020-11-29 23:38:05,155 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:38:08,305 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 215 DAG size of output: 173 [2020-11-29 23:38:08,334 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:38:08,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:38:08,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:38:08,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:38:08,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:38:08,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:08,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:38:08,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:38:08,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration11_Lasso [2020-11-29 23:38:08,335 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:38:08,335 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:38:08,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:08,420 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 23:38:08,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:09,536 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 49 [2020-11-29 23:38:10,526 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 106 [2020-11-29 23:38:10,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:10,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:10,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:11,363 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 114 [2020-11-29 23:38:11,452 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2020-11-29 23:38:12,392 WARN L193 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-11-29 23:38:12,475 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:38:12,475 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,493 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,516 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 23:38:12,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,540 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,543 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:12,543 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:12,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,567 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 23:38:12,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,604 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,629 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 23:38:12,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,631 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,632 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:12,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,656 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:12,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:12,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,703 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,706 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,741 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,741 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,744 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,771 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,772 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,772 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,797 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,797 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,798 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) [2020-11-29 23:38:12,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:12,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,918 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:12,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:12,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:12,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:12,974 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:12,995 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 23:38:12,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:12,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:12,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:12,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:12,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:12,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:13,016 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:13,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:13,042 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:13,042 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:13,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:13,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:13,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:13,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:13,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:13,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:13,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:13,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:13,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:13,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:13,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:13,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:13,069 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:13,072 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:13,093 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 23:38:13,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:13,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:13,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:13,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:13,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:13,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:13,100 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:13,121 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 23:38:13,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:13,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:13,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:13,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:13,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:13,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:13,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:13,124 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:13,145 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 23:38:13,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:13,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:13,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:13,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:13,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:13,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:13,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:13,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:13,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:13,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:13,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:13,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:13,177 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:13,177 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:13,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:13,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:13,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:13,206 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 23:38:13,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:13,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:13,229 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 23:38:13,230 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:13,263 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:38:13,375 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2020-11-29 23:38:13,375 INFO L444 ModelExtractionUtils]: 9 out of 43 variables were initially zero. Simplification set additionally 29 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) [2020-11-29 23:38:13,378 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:13,381 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 23:38:13,381 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:38:13,381 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_max_~x.base)_4, ULTIMATE.start_max_~i~0) = 1*v_rep(select #length ULTIMATE.start_max_~x.base)_4 - 2*ULTIMATE.start_max_~i~0 Supporting invariants [-2*~N~0 + 1*v_rep(select #length ULTIMATE.start_main_~#x~0.base)_4 >= 0] [2020-11-29 23:38:13,673 INFO L297 tatePredicateManager]: 56 out of 58 supporting invariants were superfluous and have been removed [2020-11-29 23:38:13,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 23:38:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:13,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 23:38:13,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:13,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:38:13,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:13,939 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 23:38:13,939 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 23:38:13,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 20 Second operand 8 states. [2020-11-29 23:38:14,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 71 transitions. cyclomatic complexity: 20. Second operand 8 states. Result 125 states and 158 transitions. Complement of second has 13 states. [2020-11-29 23:38:14,289 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 23:38:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 23:38:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 83 transitions. [2020-11-29 23:38:14,289 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 29 letters. Loop has 4 letters. [2020-11-29 23:38:14,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:14,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 33 letters. Loop has 4 letters. [2020-11-29 23:38:14,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:14,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 83 transitions. Stem has 29 letters. Loop has 8 letters. [2020-11-29 23:38:14,291 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:14,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 158 transitions. [2020-11-29 23:38:14,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:14,293 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 85 states and 106 transitions. [2020-11-29 23:38:14,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-11-29 23:38:14,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2020-11-29 23:38:14,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 106 transitions. [2020-11-29 23:38:14,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:38:14,294 INFO L691 BuchiCegarLoop]: Abstraction has 85 states and 106 transitions. [2020-11-29 23:38:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 106 transitions. [2020-11-29 23:38:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 71. [2020-11-29 23:38:14,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 23:38:14,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2020-11-29 23:38:14,299 INFO L714 BuchiCegarLoop]: Abstraction has 71 states and 87 transitions. [2020-11-29 23:38:14,299 INFO L594 BuchiCegarLoop]: Abstraction has 71 states and 87 transitions. [2020-11-29 23:38:14,299 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-11-29 23:38:14,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 87 transitions. [2020-11-29 23:38:14,300 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:14,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:14,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:14,301 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:38:14,301 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:38:14,301 INFO L794 eck$LassoCheckResult]: Stem: 2876#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 2872#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 2873#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2866#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2867#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2917#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2916#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2915#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2914#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2913#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2912#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2911#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2902#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2909#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2904#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2901#L22-3 assume !(max_~i~0 < ~N~0); 2898#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2897#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2896#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2894#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2860#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2853#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2854#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2891#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2890#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2889#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2888#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2885#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 2887#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2886#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2884#L22-8 assume !(max_~i~0 < ~N~0); 2878#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 2879#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 2863#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 2864#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 2865#L43-3 assume !(main_~i~1 < ~N~0 - 1); 2858#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 2859#L22-13 [2020-11-29 23:38:14,301 INFO L796 eck$LassoCheckResult]: Loop: 2859#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 2857#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 2855#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 2856#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 2859#L22-13 [2020-11-29 23:38:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:14,302 INFO L82 PathProgramCache]: Analyzing trace with hash 477776739, now seen corresponding path program 2 times [2020-11-29 23:38:14,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:14,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174480655] [2020-11-29 23:38:14,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:14,416 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 23:38:14,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174480655] [2020-11-29 23:38:14,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595694898] [2020-11-29 23:38:14,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/bin/uautomizer/z3 Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:38:14,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 23:38:14,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:38:14,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 23:38:14,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-29 23:38:14,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:38:14,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-11-29 23:38:14,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636854723] [2020-11-29 23:38:14,576 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:38:14,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:14,576 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 3 times [2020-11-29 23:38:14,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:14,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015980766] [2020-11-29 23:38:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:14,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:14,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:14,583 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:14,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:38:14,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 23:38:14,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:38:14,653 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. cyclomatic complexity: 22 Second operand 13 states. [2020-11-29 23:38:15,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:38:15,093 INFO L93 Difference]: Finished difference Result 82 states and 100 transitions. [2020-11-29 23:38:15,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 23:38:15,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 100 transitions. [2020-11-29 23:38:15,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:15,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 82 states and 100 transitions. [2020-11-29 23:38:15,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-11-29 23:38:15,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-11-29 23:38:15,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 100 transitions. [2020-11-29 23:38:15,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:38:15,096 INFO L691 BuchiCegarLoop]: Abstraction has 82 states and 100 transitions. [2020-11-29 23:38:15,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 100 transitions. [2020-11-29 23:38:15,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73. [2020-11-29 23:38:15,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-29 23:38:15,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2020-11-29 23:38:15,108 INFO L714 BuchiCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-11-29 23:38:15,108 INFO L594 BuchiCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-11-29 23:38:15,108 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-11-29 23:38:15,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 89 transitions. [2020-11-29 23:38:15,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:38:15,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:15,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:15,113 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:38:15,115 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 23:38:15,115 INFO L794 eck$LassoCheckResult]: Stem: 3170#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(6);call write~init~int(109, #t~string1.base, #t~string1.offset, 1);call write~init~int(97, #t~string1.base, 1 + #t~string1.offset, 1);call write~init~int(120, #t~string1.base, 2 + #t~string1.offset, 1);call write~init~int(46, #t~string1.base, 3 + #t~string1.offset, 1);call write~init~int(99, #t~string1.base, 4 + #t~string1.offset, 1);call write~init~int(0, #t~string1.base, 5 + #t~string1.offset, 1);~N~0 := 0; 3167#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8, main_#t~mem9, main_#t~mem10, main_#t~ret11, main_#t~mem12, main_#t~mem14, main_#t~post13, main_~i~1, main_#t~ret15, main_~#x~0.base, main_~#x~0.offset, main_~temp~0, main_~ret~1, main_~ret2~0, main_~ret5~0;~N~0 := main_#t~nondet7;havoc main_#t~nondet7; 3168#L31 assume ~N~0 > 1;call main_~#x~0.base, main_~#x~0.offset := #Ultimate.allocOnStack(4 * ~N~0);havoc main_~temp~0;havoc main_~ret~1;havoc main_~ret2~0;havoc main_~ret5~0;max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 3159#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3160#L23 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 3215#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 3216#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3161#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3162#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3169#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 3164#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3165#L22-3 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3211#L23 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3214#L23-2 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 3212#L22-2 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3210#L22-3 assume !(max_~i~0 < ~N~0); 3151#L22-4 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 3152#L25 main_#t~ret8 := max_#res;main_~ret~1 := main_#t~ret8;havoc main_#t~ret8;call main_#t~mem9 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem9;havoc main_#t~mem9;call main_#t~mem10 := read~int(main_~#x~0.base, 4 + main_~#x~0.offset, 4);call write~int(main_#t~mem10, main_~#x~0.base, main_~#x~0.offset, 4);havoc main_#t~mem10;call write~int(main_~temp~0, main_~#x~0.base, 4 + main_~#x~0.offset, 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 3173#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3174#L23-3 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 3153#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 3154#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3175#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3176#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3183#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 3182#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3181#L22-8 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3178#L23-3 assume !(max_~ret~0 < max_#t~mem4);max_#t~ite6 := max_~ret~0; 3180#L23-5 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 3179#L22-7 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3177#L22-8 assume !(max_~i~0 < ~N~0); 3171#L22-9 max_#res := (if max_~ret~0 % 4294967296 <= 2147483647 then max_~ret~0 % 4294967296 else max_~ret~0 % 4294967296 - 4294967296); 3172#L25-1 main_#t~ret11 := max_#res;main_~ret2~0 := main_#t~ret11;havoc main_#t~ret11;call main_#t~mem12 := read~int(main_~#x~0.base, main_~#x~0.offset, 4);main_~temp~0 := main_#t~mem12;havoc main_#t~mem12;main_~i~1 := 0; 3155#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 3156#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3157#L43-3 assume !!(main_~i~1 < ~N~0 - 1);call main_#t~mem14 := read~int(main_~#x~0.base, main_~#x~0.offset + 4 * (1 + main_~i~1), 4);call write~int(main_#t~mem14, main_~#x~0.base, main_~#x~0.offset + 4 * main_~i~1, 4);havoc main_#t~mem14; 3158#L43-2 main_#t~post13 := main_~i~1;main_~i~1 := 1 + main_#t~post13;havoc main_#t~post13; 3163#L43-3 assume !(main_~i~1 < ~N~0 - 1); 3149#L43-4 call write~int(main_~temp~0, main_~#x~0.base, main_~#x~0.offset + 4 * (~N~0 - 1), 4);max_#in~x.base, max_#in~x.offset := main_~#x~0.base, main_~#x~0.offset;havoc max_#res;havoc max_#t~mem4, max_#t~ite6, max_#t~mem5, max_#t~post3, max_~x.base, max_~x.offset, max_~i~0, max_~ret~0;max_~x.base, max_~x.offset := max_#in~x.base, max_#in~x.offset;havoc max_~i~0;havoc max_~ret~0;max_~ret~0 := 0;max_~i~0 := 0; 3150#L22-13 [2020-11-29 23:38:15,115 INFO L796 eck$LassoCheckResult]: Loop: 3150#L22-13 assume !!(max_~i~0 < ~N~0);call max_#t~mem4 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4); 3148#L23-6 assume max_~ret~0 < max_#t~mem4;call max_#t~mem5 := read~int(max_~x.base, max_~x.offset + 4 * max_~i~0, 4);max_#t~ite6 := max_#t~mem5; 3146#L23-8 max_~ret~0 := max_#t~ite6;havoc max_#t~mem5;havoc max_#t~mem4;havoc max_#t~ite6; 3147#L22-12 max_#t~post3 := max_~i~0;max_~i~0 := 1 + max_#t~post3;havoc max_#t~post3; 3150#L22-13 [2020-11-29 23:38:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:15,117 INFO L82 PathProgramCache]: Analyzing trace with hash -417996923, now seen corresponding path program 3 times [2020-11-29 23:38:15,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:15,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933375047] [2020-11-29 23:38:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:15,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:15,196 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:15,202 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:15,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:15,203 INFO L82 PathProgramCache]: Analyzing trace with hash 3173862, now seen corresponding path program 4 times [2020-11-29 23:38:15,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:15,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206817082] [2020-11-29 23:38:15,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:15,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:15,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:15,209 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:15,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:15,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1568478358, now seen corresponding path program 2 times [2020-11-29 23:38:15,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:15,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852389214] [2020-11-29 23:38:15,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:15,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:15,312 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:15,323 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:22,502 WARN L193 SmtUtils]: Spent 7.12 s on a formula simplification. DAG size of input: 363 DAG size of output: 282 [2020-11-29 23:38:22,518 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:38:45,267 WARN L193 SmtUtils]: Spent 22.74 s on a formula simplification. DAG size of input: 213 DAG size of output: 177 [2020-11-29 23:38:45,299 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:38:45,299 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:38:45,299 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:38:45,299 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:38:45,299 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:38:45,299 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:45,299 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:38:45,299 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:38:45,299 INFO L133 ssoRankerPreferences]: Filename of dumped script: max.i_Iteration13_Lasso [2020-11-29 23:38:45,299 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:38:45,299 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:38:45,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,345 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 23:38:45,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:45,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:49,109 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 36 [2020-11-29 23:38:50,286 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 129 DAG size of output: 108 [2020-11-29 23:38:50,437 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-11-29 23:38:50,438 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 23:38:50,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:50,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:50,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:50,454 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 23:38:51,223 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2020-11-29 23:38:51,304 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2020-11-29 23:38:52,305 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95 [2020-11-29 23:38:52,385 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:38:52,385 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,391 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:52,412 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 23:38:52,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:52,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:52,417 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,441 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,489 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,538 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) [2020-11-29 23:38:52,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:52,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,588 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,588 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,588 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,615 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 23:38:52,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:52,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,666 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,689 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,690 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,712 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 23:38:52,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,713 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,715 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:52,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:52,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,797 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:52,797 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:52,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:52,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:52,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:52,884 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:52,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:52,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:52,930 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:52,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,952 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,953 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,954 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:52,975 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 23:38:52,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:52,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:52,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:52,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:52,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:52,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:52,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:38:52,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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) [2020-11-29 23:38:52,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 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 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:53,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:53,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:53,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:53,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:53,003 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:53,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:53,006 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:53,027 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:53,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:53,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:53,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:53,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:53,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:53,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:53,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:53,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:53,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:53,059 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 23:38:53,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:53,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:53,079 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 23:38:53,079 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:53,102 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:38:53,125 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-11-29 23:38:53,125 INFO L444 ModelExtractionUtils]: 13 out of 43 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b4081d3-4f44-4959-8b7b-90b34162ea3f/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 23:38:53,127 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:38:53,129 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 23:38:53,129 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:38:53,129 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_max_~x.base)_5, ULTIMATE.start_max_~i~0, ULTIMATE.start_max_~x.offset) = 2*v_rep(select #length ULTIMATE.start_max_~x.base)_5 - 4*ULTIMATE.start_max_~i~0 - 1*ULTIMATE.start_max_~x.offset Supporting invariants [] [2020-11-29 23:38:53,601 INFO L297 tatePredicateManager]: 69 out of 69 supporting invariants were superfluous and have been removed [2020-11-29 23:38:53,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 23:38:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:53,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:38:53,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:53,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 23:38:53,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:53,726 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 23:38:53,727 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 23:38:53,727 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 89 transitions. cyclomatic complexity: 22 Second operand 3 states. [2020-11-29 23:38:53,749 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 89 transitions. cyclomatic complexity: 22. Second operand 3 states. Result 77 states and 95 transitions. Complement of second has 4 states. [2020-11-29 23:38:53,750 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 23:38:53,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:38:53,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2020-11-29 23:38:53,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 39 letters. Loop has 4 letters. [2020-11-29 23:38:53,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:53,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 43 letters. Loop has 4 letters. [2020-11-29 23:38:53,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:53,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 39 letters. Loop has 8 letters. [2020-11-29 23:38:53,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:53,752 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 95 transitions. [2020-11-29 23:38:53,753 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:38:53,753 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 0 states and 0 transitions. [2020-11-29 23:38:53,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:38:53,754 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:38:53,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:38:53,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:38:53,754 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:53,754 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:53,754 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:53,754 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-11-29 23:38:53,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:38:53,754 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:38:53,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 23:38:53,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:38:53 BoogieIcfgContainer [2020-11-29 23:38:53,761 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:38:53,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:38:53,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:38:53,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:38:53,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:37:33" (3/4) ... [2020-11-29 23:38:53,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:38:53,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:38:53,767 INFO L168 Benchmark]: Toolchain (without parser) took 80984.62 ms. Allocated memory was 92.3 MB in the beginning and 283.1 MB in the end (delta: 190.8 MB). Free memory was 58.2 MB in the beginning and 152.9 MB in the end (delta: -94.7 MB). Peak memory consumption was 96.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:53,768 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 92.3 MB. Free memory was 64.0 MB in the beginning and 74.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:53,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.48 ms. Allocated memory is still 92.3 MB. Free memory was 58.0 MB in the beginning and 68.7 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:53,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.00 ms. Allocated memory is still 92.3 MB. Free memory was 68.7 MB in the beginning and 66.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:53,769 INFO L168 Benchmark]: Boogie Preprocessor took 43.64 ms. Allocated memory is still 92.3 MB. Free memory was 66.9 MB in the beginning and 65.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:53,769 INFO L168 Benchmark]: RCFGBuilder took 578.47 ms. Allocated memory is still 92.3 MB. Free memory was 65.5 MB in the beginning and 46.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:53,770 INFO L168 Benchmark]: BuchiAutomizer took 79988.94 ms. Allocated memory was 92.3 MB in the beginning and 283.1 MB in the end (delta: 190.8 MB). Free memory was 46.3 MB in the beginning and 152.9 MB in the end (delta: -106.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:53,770 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 283.1 MB. Free memory is still 152.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:53,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 92.3 MB. Free memory was 64.0 MB in the beginning and 74.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 286.48 ms. Allocated memory is still 92.3 MB. Free memory was 58.0 MB in the beginning and 68.7 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.00 ms. Allocated memory is still 92.3 MB. Free memory was 68.7 MB in the beginning and 66.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.64 ms. Allocated memory is still 92.3 MB. Free memory was 66.9 MB in the beginning and 65.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 578.47 ms. Allocated memory is still 92.3 MB. Free memory was 65.5 MB in the beginning and 46.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 79988.94 ms. Allocated memory was 92.3 MB in the beginning and 283.1 MB in the end (delta: 190.8 MB). Free memory was 46.3 MB in the beginning and 152.9 MB in the end (delta: -106.6 MB). Peak memory consumption was 86.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.56 ms. Allocated memory is still 283.1 MB. Free memory is still 152.9 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 13 terminating modules (8 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + N and consists of 5 locations. One deterministic module has affine ranking function -1 * i + N and consists of 4 locations. One deterministic module has affine ranking function -4 * i + -1 * x + unknown-#length-unknown[x] and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[x] + -2 * i and consists of 11 locations. One deterministic module has affine ranking function 2 * unknown-#length-unknown[x] + -4 * i + -1 * x and consists of 3 locations. 8 modules have a trivial ranking function, the largest among these consists of 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 79.9s and 14 iterations. TraceHistogramMax:3. Analysis of lassos took 75.0s. Construction of modules took 1.9s. Büchi inclusion checks took 2.7s. Highest rank in rank-based complementation 3. Minimization of det autom 13. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 215 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 73 states and ocurred in iteration 12. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 258 SDtfs, 642 SDslu, 488 SDs, 0 SdLazy, 2211 SolverSat, 182 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU7 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital719 mio100 ax100 hnf99 lsp152 ukn33 mio100 lsp110 div109 bol100 ite100 ukn100 eq153 hnf83 smp68 dnf307 smp51 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 113ms VariablesStem: 18 VariablesLoop: 9 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...